summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/aio.c20
-rw-r--r--fs/binfmt_elf.c1
-rw-r--r--fs/binfmt_flat.c2
-rw-r--r--fs/coda/Makefile3
-rw-r--r--fs/coda/cache.c2
-rw-r--r--fs/coda/cnode.c17
-rw-r--r--fs/coda/coda_fs_i.h4
-rw-r--r--fs/coda/coda_int.h10
-rw-r--r--fs/coda/coda_linux.c45
-rw-r--r--fs/coda/coda_linux.h16
-rw-r--r--fs/coda/coda_psdev.h95
-rw-r--r--fs/coda/dir.c12
-rw-r--r--fs/coda/file.c143
-rw-r--r--fs/coda/inode.c3
-rw-r--r--fs/coda/pioctl.c3
-rw-r--r--fs/coda/psdev.c36
-rw-r--r--fs/coda/symlink.c3
-rw-r--r--fs/coda/sysctl.c11
-rw-r--r--fs/coda/upcall.c146
-rw-r--r--fs/eventpoll.c12
-rw-r--r--fs/hfsplus/xattr.c2
-rw-r--r--fs/io_uring.c11
-rw-r--r--fs/proc/Kconfig3
-rw-r--r--fs/proc/inode.c27
-rw-r--r--fs/proc/proc_sysctl.c4
-rw-r--r--fs/proc/vmcore.c9
-rw-r--r--fs/reiserfs/journal.c6
-rw-r--r--fs/select.c96
-rw-r--r--fs/ufs/super.c2
29 files changed, 491 insertions, 253 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 2d405733a8c6..8327db0c8e08 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -2094,7 +2094,6 @@ SYSCALL_DEFINE6(io_pgetevents,
const struct __aio_sigset __user *, usig)
{
struct __aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 ts;
bool interrupted;
int ret;
@@ -2105,14 +2104,14 @@ SYSCALL_DEFINE6(io_pgetevents,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2130,7 +2129,6 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
const struct __aio_sigset __user *, usig)
{
struct __aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 ts;
bool interrupted;
int ret;
@@ -2142,14 +2140,14 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
return -EFAULT;
- ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2198,7 +2196,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
const struct __compat_aio_sigset __user *, usig)
{
struct __compat_aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 t;
bool interrupted;
int ret;
@@ -2209,14 +2206,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2234,7 +2231,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
const struct __compat_aio_sigset __user *, usig)
{
struct __compat_aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 t;
bool interrupted;
int ret;
@@ -2245,14 +2241,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 8264b468f283..d4e11b2e04f6 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1127,7 +1127,6 @@ out_free_interp:
load_addr, interp_load_addr);
if (retval < 0)
goto out;
- /* N.B. passed_fileno might not be initialized? */
current->mm->end_code = end_code;
current->mm->start_code = start_code;
current->mm->start_data = start_data;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 8c6b50f34466..831a2b25ba79 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -431,7 +431,6 @@ static int load_flat_file(struct linux_binprm *bprm,
unsigned long len, memp, memp_size, extra, rlim;
__be32 __user *reloc;
u32 __user *rp;
- struct inode *inode;
int i, rev, relocs;
loff_t fpos;
unsigned long start_code, end_code;
@@ -439,7 +438,6 @@ static int load_flat_file(struct linux_binprm *bprm,
int ret;
hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */
- inode = file_inode(bprm->file);
text_len = ntohl(hdr->data_start);
data_len = ntohl(hdr->data_end) - ntohl(hdr->data_start);
diff --git a/fs/coda/Makefile b/fs/coda/Makefile
index 1ce66819da2a..78befb8369c9 100644
--- a/fs/coda/Makefile
+++ b/fs/coda/Makefile
@@ -6,7 +6,8 @@
obj-$(CONFIG_CODA_FS) += coda.o
coda-objs := psdev.o cache.o cnode.o inode.o dir.o file.o upcall.o \
- coda_linux.o symlink.o pioctl.o sysctl.o
+ coda_linux.o symlink.o pioctl.o
+coda-$(CONFIG_SYSCTL) += sysctl.o
# If you want debugging output, please uncomment the following line.
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 201fc08a8b4f..3b8c4513118f 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -21,7 +21,7 @@
#include <linux/spinlock.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_cache.h"
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index 845b5a66952a..06855f6c7902 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -8,8 +8,8 @@
#include <linux/time.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
#include <linux/pagemap.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
static inline int coda_fideq(struct CodaFid *fid1, struct CodaFid *fid2)
@@ -137,11 +137,6 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb)
struct inode *inode;
unsigned long hash = coda_f2i(fid);
- if ( !sb ) {
- pr_warn("%s: no sb!\n", __func__);
- return NULL;
- }
-
inode = ilookup5(sb, hash, coda_test_inode, fid);
if ( !inode )
return NULL;
@@ -153,6 +148,16 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb)
return inode;
}
+struct coda_file_info *coda_ftoc(struct file *file)
+{
+ struct coda_file_info *cfi = file->private_data;
+
+ BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+
+ return cfi;
+
+}
+
/* the CONTROL inode is made without asking attributes from Venus */
struct inode *coda_cnode_makectl(struct super_block *sb)
{
diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h
index d702ba1a2bf9..1763ff95d865 100644
--- a/fs/coda/coda_fs_i.h
+++ b/fs/coda/coda_fs_i.h
@@ -40,10 +40,9 @@ struct coda_file_info {
int cfi_magic; /* magic number */
struct file *cfi_container; /* container file for this cnode */
unsigned int cfi_mapcount; /* nr of times this file is mapped */
+ bool cfi_access_intent; /* is access intent supported */
};
-#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
-
/* flags */
#define C_VATTR 0x1 /* Validity of vattr in inode */
#define C_FLUSH 0x2 /* used after a flush */
@@ -54,6 +53,7 @@ struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
struct inode *coda_cnode_makectl(struct super_block *sb);
struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
+struct coda_file_info *coda_ftoc(struct file *file);
void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
#endif
diff --git a/fs/coda/coda_int.h b/fs/coda/coda_int.h
index bb0b3e0ed6c2..f82b59c9dd28 100644
--- a/fs/coda/coda_int.h
+++ b/fs/coda/coda_int.h
@@ -13,9 +13,19 @@ extern int coda_fake_statfs;
void coda_destroy_inodecache(void);
int __init coda_init_inodecache(void);
int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync);
+
+#ifdef CONFIG_SYSCTL
void coda_sysctl_init(void);
void coda_sysctl_clean(void);
+#else
+static inline void coda_sysctl_init(void)
+{
+}
+static inline void coda_sysctl_clean(void)
+{
+}
+#endif
#endif /* _CODA_INT_ */
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
index f3d543dd9a98..2e1a5a192074 100644
--- a/fs/coda/coda_linux.c
+++ b/fs/coda/coda_linux.c
@@ -18,7 +18,7 @@
#include <linux/string.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
/* initialize the debugging variables */
@@ -66,6 +66,25 @@ unsigned short coda_flags_to_cflags(unsigned short flags)
return coda_flags;
}
+static struct timespec64 coda_to_timespec64(struct coda_timespec ts)
+{
+ struct timespec64 ts64 = {
+ .tv_sec = ts.tv_sec,
+ .tv_nsec = ts.tv_nsec,
+ };
+
+ return ts64;
+}
+
+static struct coda_timespec timespec64_to_coda(struct timespec64 ts64)
+{
+ struct coda_timespec ts = {
+ .tv_sec = ts64.tv_sec,
+ .tv_nsec = ts64.tv_nsec,
+ };
+
+ return ts;
+}
/* utility functions below */
void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
@@ -105,11 +124,11 @@ void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
if (attr->va_size != -1)
inode->i_blocks = (attr->va_size + 511) >> 9;
if (attr->va_atime.tv_sec != -1)
- inode->i_atime = timespec_to_timespec64(attr->va_atime);
+ inode->i_atime = coda_to_timespec64(attr->va_atime);
if (attr->va_mtime.tv_sec != -1)
- inode->i_mtime = timespec_to_timespec64(attr->va_mtime);
+ inode->i_mtime = coda_to_timespec64(attr->va_mtime);
if (attr->va_ctime.tv_sec != -1)
- inode->i_ctime = timespec_to_timespec64(attr->va_ctime);
+ inode->i_ctime = coda_to_timespec64(attr->va_ctime);
}
@@ -130,12 +149,12 @@ void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
vattr->va_uid = (vuid_t) -1;
vattr->va_gid = (vgid_t) -1;
vattr->va_size = (off_t) -1;
- vattr->va_atime.tv_sec = (time_t) -1;
- vattr->va_atime.tv_nsec = (time_t) -1;
- vattr->va_mtime.tv_sec = (time_t) -1;
- vattr->va_mtime.tv_nsec = (time_t) -1;
- vattr->va_ctime.tv_sec = (time_t) -1;
- vattr->va_ctime.tv_nsec = (time_t) -1;
+ vattr->va_atime.tv_sec = (int64_t) -1;
+ vattr->va_atime.tv_nsec = (long) -1;
+ vattr->va_mtime.tv_sec = (int64_t) -1;
+ vattr->va_mtime.tv_nsec = (long) -1;
+ vattr->va_ctime.tv_sec = (int64_t) -1;
+ vattr->va_ctime.tv_nsec = (long) -1;
vattr->va_type = C_VNON;
vattr->va_fileid = -1;
vattr->va_gen = -1;
@@ -175,13 +194,13 @@ void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
vattr->va_size = iattr->ia_size;
}
if ( valid & ATTR_ATIME ) {
- vattr->va_atime = timespec64_to_timespec(iattr->ia_atime);
+ vattr->va_atime = timespec64_to_coda(iattr->ia_atime);
}
if ( valid & ATTR_MTIME ) {
- vattr->va_mtime = timespec64_to_timespec(iattr->ia_mtime);
+ vattr->va_mtime = timespec64_to_coda(iattr->ia_mtime);
}
if ( valid & ATTR_CTIME ) {
- vattr->va_ctime = timespec64_to_timespec(iattr->ia_ctime);
+ vattr->va_ctime = timespec64_to_coda(iattr->ia_ctime);
}
}
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index 126155cadfa9..d5ebd36fb2cc 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -59,22 +59,6 @@ void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
unsigned short coda_flags_to_cflags(unsigned short);
-/* sysctl.h */
-void coda_sysctl_init(void);
-void coda_sysctl_clean(void);
-
-#define CODA_ALLOC(ptr, cast, size) do { \
- if (size < PAGE_SIZE) \
- ptr = kzalloc((unsigned long) size, GFP_KERNEL); \
- else \
- ptr = (cast)vzalloc((unsigned long) size); \
- if (!ptr) \
- pr_warn("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
-} while (0)
-
-
-#define CODA_FREE(ptr, size) kvfree((ptr))
-
/* inode to cnode access functions */
static inline struct coda_inode_info *ITOC(struct inode *inode)
diff --git a/fs/coda/coda_psdev.h b/fs/coda/coda_psdev.h
new file mode 100644
index 000000000000..52da08c770b0
--- /dev/null
+++ b/fs/coda/coda_psdev.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CODA_PSDEV_H
+#define __CODA_PSDEV_H
+
+#include <linux/backing-dev.h>
+#include <linux/magic.h>
+#include <linux/mutex.h>
+
+#define CODA_PSDEV_MAJOR 67
+#define MAX_CODADEVS 5 /* how many do we allow */
+
+struct kstatfs;
+
+/* messages between coda filesystem in kernel and Venus */
+struct upc_req {
+ struct list_head uc_chain;
+ caddr_t uc_data;
+ u_short uc_flags;
+ u_short uc_inSize; /* Size is at most 5000 bytes */
+ u_short uc_outSize;
+ u_short uc_opcode; /* copied from data to save lookup */
+ int uc_unique;
+ wait_queue_head_t uc_sleep; /* process' wait queue */
+};
+
+#define CODA_REQ_ASYNC 0x1
+#define CODA_REQ_READ 0x2
+#define CODA_REQ_WRITE 0x4
+#define CODA_REQ_ABORT 0x8
+
+/* communication pending/processing queues */
+struct venus_comm {
+ u_long vc_seq;
+ wait_queue_head_t vc_waitq; /* Venus wait queue */
+ struct list_head vc_pending;
+ struct list_head vc_processing;
+ int vc_inuse;
+ struct super_block *vc_sb;
+ struct mutex vc_mutex;
+};
+
+static inline struct venus_comm *coda_vcp(struct super_block *sb)
+{
+ return (struct venus_comm *)((sb)->s_fs_info);
+}
+
+/* upcalls */
+int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
+int venus_getattr(struct super_block *sb, struct CodaFid *fid,
+ struct coda_vattr *attr);
+int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
+int venus_lookup(struct super_block *sb, struct CodaFid *fid,
+ const char *name, int length, int *type,
+ struct CodaFid *resfid);
+int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
+ kuid_t uid);
+int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
+ struct file **f);
+int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length,
+ struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_create(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length, int excl, int mode,
+ struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length);
+int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length);
+int venus_readlink(struct super_block *sb, struct CodaFid *fid,
+ char *buffer, int *length);
+int venus_rename(struct super_block *sb, struct CodaFid *new_fid,
+ struct CodaFid *old_fid, size_t old_length,
+ size_t new_length, const char *old_name,
+ const char *new_name);
+int venus_link(struct super_block *sb, struct CodaFid *fid,
+ struct CodaFid *dirfid, const char *name, int len );
+int venus_symlink(struct super_block *sb, struct CodaFid *fid,
+ const char *name, int len, const char *symname, int symlen);
+int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
+int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
+ unsigned int cmd, struct PioctlData *data);
+int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out,
+ size_t nbytes);
+int venus_fsync(struct super_block *sb, struct CodaFid *fid);
+int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
+int venus_access_intent(struct super_block *sb, struct CodaFid *fid,
+ bool *access_intent_supported,
+ size_t count, loff_t ppos, int type);
+
+/*
+ * Statistics
+ */
+
+extern struct venus_comm coda_comms[];
+#endif
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 00876ddadb43..ca40c2556ba6 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -23,7 +23,7 @@
#include <linux/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_cache.h"
@@ -47,8 +47,8 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, unsig
int type = 0;
if (length > CODA_MAXNAMLEN) {
- pr_err("name too long: lookup, %s (%*s)\n",
- coda_i2s(dir), (int)length, name);
+ pr_err("name too long: lookup, %s %zu\n",
+ coda_i2s(dir), length);
return ERR_PTR(-ENAMETOOLONG);
}
@@ -356,8 +356,7 @@ static int coda_venus_readdir(struct file *coda_file, struct dir_context *ctx)
ino_t ino;
int ret;
- cfi = CODA_FTOC(coda_file);
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ cfi = coda_ftoc(coda_file);
host_file = cfi->cfi_container;
cii = ITOC(file_inode(coda_file));
@@ -426,8 +425,7 @@ static int coda_readdir(struct file *coda_file, struct dir_context *ctx)
struct file *host_file;
int ret;
- cfi = CODA_FTOC(coda_file);
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ cfi = coda_ftoc(coda_file);
host_file = cfi->cfi_container;
if (host_file->f_op->iterate || host_file->f_op->iterate_shared) {
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 1cbc1f2298ee..128d63df5bfb 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -20,22 +20,43 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include <linux/uio.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_int.h"
+struct coda_vm_ops {
+ atomic_t refcnt;
+ struct file *coda_file;
+ const struct vm_operations_struct *host_vm_ops;
+ struct vm_operations_struct vm_ops;
+};
+
static ssize_t
coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
struct file *coda_file = iocb->ki_filp;
- struct coda_file_info *cfi = CODA_FTOC(coda_file);
+ struct inode *coda_inode = file_inode(coda_file);
+ struct coda_file_info *cfi = coda_ftoc(coda_file);
+ loff_t ki_pos = iocb->ki_pos;
+ size_t count = iov_iter_count(to);
+ ssize_t ret;
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+ &cfi->cfi_access_intent,
+ count, ki_pos, CODA_ACCESS_TYPE_READ);
+ if (ret)
+ goto finish_read;
- return vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos, 0);
+ ret = vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos, 0);
+
+finish_read:
+ venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+ &cfi->cfi_access_intent,
+ count, ki_pos, CODA_ACCESS_TYPE_READ_FINISH);
+ return ret;
}
static ssize_t
@@ -43,13 +64,18 @@ coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to)
{
struct file *coda_file = iocb->ki_filp;
struct inode *coda_inode = file_inode(coda_file);
- struct coda_file_info *cfi = CODA_FTOC(coda_file);
- struct file *host_file;
+ struct coda_file_info *cfi = coda_ftoc(coda_file);
+ struct file *host_file = cfi->cfi_container;
+ loff_t ki_pos = iocb->ki_pos;
+ size_t count = iov_iter_count(to);
ssize_t ret;
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+ &cfi->cfi_access_intent,
+ count, ki_pos, CODA_ACCESS_TYPE_WRITE);
+ if (ret)
+ goto finish_write;
- host_file = cfi->cfi_container;
file_start_write(host_file);
inode_lock(coda_inode);
ret = vfs_iter_write(cfi->cfi_container, to, &iocb->ki_pos, 0);
@@ -58,26 +84,73 @@ coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to)
coda_inode->i_mtime = coda_inode->i_ctime = current_time(coda_inode);
inode_unlock(coda_inode);
file_end_write(host_file);
+
+finish_write:
+ venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+ &cfi->cfi_access_intent,
+ count, ki_pos, CODA_ACCESS_TYPE_WRITE_FINISH);
return ret;
}
+static void
+coda_vm_open(struct vm_area_struct *vma)
+{
+ struct coda_vm_ops *cvm_ops =
+ container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+ atomic_inc(&cvm_ops->refcnt);
+
+ if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->open)
+ cvm_ops->host_vm_ops->open(vma);
+}
+
+static void
+coda_vm_close(struct vm_area_struct *vma)
+{
+ struct coda_vm_ops *cvm_ops =
+ container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+ if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->close)
+ cvm_ops->host_vm_ops->close(vma);
+
+ if (atomic_dec_and_test(&cvm_ops->refcnt)) {
+ vma->vm_ops = cvm_ops->host_vm_ops;
+ fput(cvm_ops->coda_file);
+ kfree(cvm_ops);
+ }
+}
+
static int
coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
{
- struct coda_file_info *cfi;
+ struct inode *coda_inode = file_inode(coda_file);
+ struct coda_file_info *cfi = coda_ftoc(coda_file);
+ struct file *host_file = cfi->cfi_container;
+ struct inode *host_inode = file_inode(host_file);
struct coda_inode_info *cii;
- struct file *host_file;
- struct inode *coda_inode, *host_inode;
-
- cfi = CODA_FTOC(coda_file);
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
- host_file = cfi->cfi_container;
+ struct coda_vm_ops *cvm_ops;
+ loff_t ppos;
+ size_t count;
+ int ret;
if (!host_file->f_op->mmap)
return -ENODEV;
- coda_inode = file_inode(coda_file);
- host_inode = file_inode(host_file);
+ if (WARN_ON(coda_file != vma->vm_file))
+ return -EIO;
+
+ count = vma->vm_end - vma->vm_start;
+ ppos = vma->vm_pgoff * PAGE_SIZE;
+
+ ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+ &cfi->cfi_access_intent,
+ count, ppos, CODA_ACCESS_TYPE_MMAP);
+ if (ret)
+ return ret;
+
+ cvm_ops = kmalloc(sizeof(struct coda_vm_ops), GFP_KERNEL);
+ if (!cvm_ops)
+ return -ENOMEM;
cii = ITOC(coda_inode);
spin_lock(&cii->c_lock);
@@ -89,6 +162,7 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
* the container file on us! */
else if (coda_inode->i_mapping != host_inode->i_mapping) {
spin_unlock(&cii->c_lock);
+ kfree(cvm_ops);
return -EBUSY;
}
@@ -97,7 +171,29 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
cfi->cfi_mapcount++;
spin_unlock(&cii->c_lock);
- return call_mmap(host_file, vma);
+ vma->vm_file = get_file(host_file);
+ ret = call_mmap(vma->vm_file, vma);
+
+ if (ret) {
+ /* if call_mmap fails, our caller will put coda_file so we
+ * should drop the reference to the host_file that we got.
+ */
+ fput(host_file);
+ kfree(cvm_ops);
+ } else {
+ /* here we add redirects for the open/close vm_operations */
+ cvm_ops->host_vm_ops = vma->vm_ops;
+ if (vma->vm_ops)
+ cvm_ops->vm_ops = *vma->vm_ops;
+
+ cvm_ops->vm_ops.open = coda_vm_open;
+ cvm_ops->vm_ops.close = coda_vm_close;
+ cvm_ops->coda_file = coda_file;
+ atomic_set(&cvm_ops->refcnt, 1);
+
+ vma->vm_ops = &cvm_ops->vm_ops;
+ }
+ return ret;
}
int coda_open(struct inode *coda_inode, struct file *coda_file)
@@ -127,6 +223,8 @@ int coda_open(struct inode *coda_inode, struct file *coda_file)
cfi->cfi_magic = CODA_MAGIC;
cfi->cfi_mapcount = 0;
cfi->cfi_container = host_file;
+ /* assume access intents are supported unless we hear otherwise */
+ cfi->cfi_access_intent = true;
BUG_ON(coda_file->private_data != NULL);
coda_file->private_data = cfi;
@@ -142,8 +240,7 @@ int coda_release(struct inode *coda_inode, struct file *coda_file)
struct inode *host_inode;
int err;
- cfi = CODA_FTOC(coda_file);
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ cfi = coda_ftoc(coda_file);
err = venus_close(coda_inode->i_sb, coda_i2f(coda_inode),
coda_flags, coda_file->f_cred->fsuid);
@@ -185,8 +282,7 @@ int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync)
return err;
inode_lock(coda_inode);
- cfi = CODA_FTOC(coda_file);
- BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+ cfi = coda_ftoc(coda_file);
host_file = cfi->cfi_container;
err = vfs_fsync(host_file, datasync);
@@ -207,4 +303,3 @@ const struct file_operations coda_file_operations = {
.fsync = coda_fsync,
.splice_read = generic_file_splice_read,
};
-
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 23f6ebd08e80..321f56e487cb 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -27,7 +27,7 @@
#include <linux/vmalloc.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_cache.h"
@@ -236,6 +236,7 @@ static void coda_put_super(struct super_block *sb)
vcp->vc_sb = NULL;
sb->s_fs_info = NULL;
mutex_unlock(&vcp->vc_mutex);
+ mutex_destroy(&vcp->vc_mutex);
pr_info("Bye bye.\n");
}
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index e0c17b7dccce..644d48c12ce8 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -20,8 +20,7 @@
#include <linux/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
#include "coda_linux.h"
/* pioctl ops */
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 0ceef32e6fae..240669f51eac 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -38,8 +38,7 @@
#include <linux/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_int.h"
@@ -100,8 +99,12 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
ssize_t retval = 0, count = 0;
int error;
+ /* make sure there is enough to copy out the (opcode, unique) values */
+ if (nbytes < (2 * sizeof(u_int32_t)))
+ return -EINVAL;
+
/* Peek at the opcode, uniquefier */
- if (copy_from_user(&hdr, buf, 2 * sizeof(u_long)))
+ if (copy_from_user(&hdr, buf, 2 * sizeof(u_int32_t)))
return -EFAULT;
if (DOWNCALL(hdr.opcode)) {
@@ -119,17 +122,21 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
hdr.opcode, hdr.unique);
nbytes = size;
}
- CODA_ALLOC(dcbuf, union outputArgs *, nbytes);
+ dcbuf = kvmalloc(nbytes, GFP_KERNEL);
+ if (!dcbuf) {
+ retval = -ENOMEM;
+ goto out;
+ }
if (copy_from_user(dcbuf, buf, nbytes)) {
- CODA_FREE(dcbuf, nbytes);
+ kvfree(dcbuf);
retval = -EFAULT;
goto out;
}
/* what downcall errors does Venus handle ? */
- error = coda_downcall(vcp, hdr.opcode, dcbuf);
+ error = coda_downcall(vcp, hdr.opcode, dcbuf, nbytes);
- CODA_FREE(dcbuf, nbytes);
+ kvfree(dcbuf);
if (error) {
pr_warn("%s: coda_downcall error: %d\n",
__func__, error);
@@ -182,8 +189,11 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
if (req->uc_opcode == CODA_OPEN_BY_FD) {
struct coda_open_by_fd_out *outp =
(struct coda_open_by_fd_out *)req->uc_data;
- if (!outp->oh.result)
+ if (!outp->oh.result) {
outp->fh = fget(outp->fd);
+ if (!outp->fh)
+ return -EBADF;
+ }
}
wake_up(&req->uc_sleep);
@@ -252,7 +262,7 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf,
goto out;
}
- CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+ kvfree(req->uc_data);
kfree(req);
out:
mutex_unlock(&vcp->vc_mutex);
@@ -314,7 +324,7 @@ static int coda_psdev_release(struct inode * inode, struct file * file)
/* Async requests need to be freed here */
if (req->uc_flags & CODA_REQ_ASYNC) {
- CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+ kvfree(req->uc_data);
kfree(req);
continue;
}
@@ -347,13 +357,13 @@ static const struct file_operations coda_psdev_fops = {
.llseek = noop_llseek,
};
-static int init_coda_psdev(void)
+static int __init init_coda_psdev(void)
{
int i, err = 0;
if (register_chrdev(CODA_PSDEV_MAJOR, "coda", &coda_psdev_fops)) {
pr_err("%s: unable to get major %d\n",
__func__, CODA_PSDEV_MAJOR);
- return -EIO;
+ return -EIO;
}
coda_psdev_class = class_create(THIS_MODULE, "coda");
if (IS_ERR(coda_psdev_class)) {
@@ -378,7 +388,7 @@ MODULE_AUTHOR("Jan Harkes, Peter J. Braam");
MODULE_DESCRIPTION("Coda Distributed File System VFS interface");
MODULE_ALIAS_CHARDEV_MAJOR(CODA_PSDEV_MAJOR);
MODULE_LICENSE("GPL");
-MODULE_VERSION("6.6");
+MODULE_VERSION("7.0");
static int __init init_coda(void)
{
diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
index 202297d156df..8907d0508198 100644
--- a/fs/coda/symlink.c
+++ b/fs/coda/symlink.c
@@ -17,8 +17,7 @@
#include <linux/pagemap.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
#include "coda_linux.h"
static int coda_symlink_filler(struct file *file, struct page *page)
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 0301d45000a8..fda3b702b1c5 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -12,7 +12,6 @@
#include "coda_int.h"
-#ifdef CONFIG_SYSCTL
static struct ctl_table_header *fs_table_header;
static struct ctl_table coda_table[] = {
@@ -62,13 +61,3 @@ void coda_sysctl_clean(void)
fs_table_header = NULL;
}
}
-
-#else
-void coda_sysctl_init(void)
-{
-}
-
-void coda_sysctl_clean(void)
-{
-}
-#endif
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index 1175a1722411..eb3b1898da46 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -33,7 +33,7 @@
#include <linux/vfs.h>
#include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
#include "coda_linux.h"
#include "coda_cache.h"
@@ -46,7 +46,7 @@ static void *alloc_upcall(int opcode, int size)
{
union inputArgs *inp;
- CODA_ALLOC(inp, union inputArgs *, size);
+ inp = kvzalloc(size, GFP_KERNEL);
if (!inp)
return ERR_PTR(-ENOMEM);
@@ -85,7 +85,7 @@ int venus_rootfid(struct super_block *sb, struct CodaFid *fidp)
if (!error)
*fidp = outp->coda_root.VFid;
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -104,7 +104,7 @@ int venus_getattr(struct super_block *sb, struct CodaFid *fid,
if (!error)
*attr = outp->coda_getattr.attr;
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -123,7 +123,7 @@ int venus_setattr(struct super_block *sb, struct CodaFid *fid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -153,7 +153,7 @@ int venus_lookup(struct super_block *sb, struct CodaFid *fid,
*type = outp->coda_lookup.vtype;
}
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -173,7 +173,7 @@ int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -194,7 +194,7 @@ int venus_open(struct super_block *sb, struct CodaFid *fid,
if (!error)
*fh = outp->coda_open_by_fd.fh;
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -224,7 +224,7 @@ int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
*newfid = outp->coda_mkdir.VFid;
}
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -262,7 +262,7 @@ int venus_rename(struct super_block *sb, struct CodaFid *old_fid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -295,7 +295,7 @@ int venus_create(struct super_block *sb, struct CodaFid *dirfid,
*newfid = outp->coda_create.VFid;
}
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -318,7 +318,7 @@ int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -340,7 +340,7 @@ int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -370,7 +370,7 @@ int venus_readlink(struct super_block *sb, struct CodaFid *fid,
*(buffer + retlen) = '\0';
}
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -398,7 +398,7 @@ int venus_link(struct super_block *sb, struct CodaFid *fid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -433,7 +433,7 @@ int venus_symlink(struct super_block *sb, struct CodaFid *fid,
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -449,7 +449,7 @@ int venus_fsync(struct super_block *sb, struct CodaFid *fid)
inp->coda_fsync.VFid = *fid;
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -467,7 +467,7 @@ int venus_access(struct super_block *sb, struct CodaFid *fid, int mask)
error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -543,7 +543,7 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
}
exit:
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
@@ -553,7 +553,7 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs)
union outputArgs *outp;
int insize, outsize, error;
- insize = max_t(unsigned int, INSIZE(statfs), OUTSIZE(statfs));
+ insize = SIZE(statfs);
UPARG(CODA_STATFS);
error = coda_upcall(coda_vcp(dentry->d_sb), insize, &outsize, inp);
@@ -565,10 +565,51 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs)
sfs->f_ffree = outp->coda_statfs.stat.f_ffree;
}
- CODA_FREE(inp, insize);
+ kvfree(inp);
return error;
}
+int venus_access_intent(struct super_block *sb, struct CodaFid *fid,
+ bool *access_intent_supported,
+ size_t count, loff_t ppos, int type)
+{
+ union inputArgs *inp;
+ union outputArgs *outp;
+ int insize, outsize, error;
+ bool finalizer =
+ type == CODA_ACCESS_TYPE_READ_FINISH ||
+ type == CODA_ACCESS_TYPE_WRITE_FINISH;
+
+ if (!*access_intent_supported && !finalizer)
+ return 0;
+
+ insize = SIZE(access_intent);
+ UPARG(CODA_ACCESS_INTENT);
+
+ inp->coda_access_intent.VFid = *fid;
+ inp->coda_access_intent.count = count;
+ inp->coda_access_intent.pos = ppos;
+ inp->coda_access_intent.type = type;
+
+ error = coda_upcall(coda_vcp(sb), insize,
+ finalizer ? NULL : &outsize, inp);
+
+ /*
+ * we have to free the request buffer for synchronous upcalls
+ * or when asynchronous upcalls fail, but not when asynchronous
+ * upcalls succeed
+ */
+ if (!finalizer || error)
+ kvfree(inp);
+
+ /* Chunked access is not supported or an old Coda client */
+ if (error == -EOPNOTSUPP) {
+ *access_intent_supported = false;
+ error = 0;
+ }
+ return error;
+}
+
/*
* coda_upcall and coda_downcall routines.
*/
@@ -598,10 +639,12 @@ static void coda_unblock_signals(sigset_t *old)
* has seen them,
* - CODA_CLOSE or CODA_RELEASE upcall (to avoid reference count problems)
* - CODA_STORE (to avoid data loss)
+ * - CODA_ACCESS_INTENT (to avoid reference count problems)
*/
#define CODA_INTERRUPTIBLE(r) (!coda_hard && \
(((r)->uc_opcode != CODA_CLOSE && \
(r)->uc_opcode != CODA_STORE && \
+ (r)->uc_opcode != CODA_ACCESS_INTENT && \
(r)->uc_opcode != CODA_RELEASE) || \
(r)->uc_flags & CODA_REQ_READ))
@@ -687,21 +730,25 @@ static int coda_upcall(struct venus_comm *vcp,
goto exit;
}
+ buffer->ih.unique = ++vcp->vc_seq;
+
req->uc_data = (void *)buffer;
- req->uc_flags = 0;
+ req->uc_flags = outSize ? 0 : CODA_REQ_ASYNC;
req->uc_inSize = inSize;
- req->uc_outSize = *outSize ? *outSize : inSize;
- req->uc_opcode = ((union inputArgs *)buffer)->ih.opcode;
- req->uc_unique = ++vcp->vc_seq;
+ req->uc_outSize = (outSize && *outSize) ? *outSize : inSize;
+ req->uc_opcode = buffer->ih.opcode;
+ req->uc_unique = buffer->ih.unique;
init_waitqueue_head(&req->uc_sleep);
- /* Fill in the common input args. */
- ((union inputArgs *)buffer)->ih.unique = req->uc_unique;
-
/* Append msg to pending queue and poke Venus. */
list_add_tail(&req->uc_chain, &vcp->vc_pending);
-
wake_up_interruptible(&vcp->vc_waitq);
+
+ if (req->uc_flags & CODA_REQ_ASYNC) {
+ mutex_unlock(&vcp->vc_mutex);
+ return 0;
+ }
+
/* We can be interrupted while we wait for Venus to process
* our request. If the interrupt occurs before Venus has read
* the request, we dequeue and return. If it occurs after the
@@ -743,20 +790,20 @@ static int coda_upcall(struct venus_comm *vcp,
sig_req = kmalloc(sizeof(struct upc_req), GFP_KERNEL);
if (!sig_req) goto exit;
- CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr));
- if (!sig_req->uc_data) {
+ sig_inputArgs = kvzalloc(sizeof(struct coda_in_hdr), GFP_KERNEL);
+ if (!sig_inputArgs) {
kfree(sig_req);
goto exit;
}
error = -EINTR;
- sig_inputArgs = (union inputArgs *)sig_req->uc_data;
sig_inputArgs->ih.opcode = CODA_SIGNAL;
sig_inputArgs->ih.unique = req->uc_unique;
sig_req->uc_flags = CODA_REQ_ASYNC;
sig_req->uc_opcode = sig_inputArgs->ih.opcode;
sig_req->uc_unique = sig_inputArgs->ih.unique;
+ sig_req->uc_data = (void *)sig_inputArgs;
sig_req->uc_inSize = sizeof(struct coda_in_hdr);
sig_req->uc_outSize = sizeof(struct coda_in_hdr);
@@ -804,12 +851,44 @@ exit:
*
* CODA_REPLACE -- replace one CodaFid with another throughout the name cache */
-int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out)
+int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out,
+ size_t nbytes)
{
struct inode *inode = NULL;
struct CodaFid *fid = NULL, *newfid;
struct super_block *sb;
+ /*
+ * Make sure we have received enough data from the cache
+ * manager to populate the necessary fields in the buffer
+ */
+ switch (opcode) {
+ case CODA_PURGEUSER:
+ if (nbytes < sizeof(struct coda_purgeuser_out))
+ return -EINVAL;
+ break;
+
+ case CODA_ZAPDIR:
+ if (nbytes < sizeof(struct coda_zapdir_out))
+ return -EINVAL;
+ break;
+
+ case CODA_ZAPFILE:
+ if (nbytes < sizeof(struct coda_zapfile_out))
+ return -EINVAL;
+ break;
+
+ case CODA_PURGEFID:
+ if (nbytes < sizeof(struct coda_purgefid_out))
+ return -EINVAL;
+ break;
+
+ case CODA_REPLACE:
+ if (nbytes < sizeof(struct coda_replace_out))
+ return -EINVAL;
+ break;
+ }
+
/* Handle invalidation requests. */
mutex_lock(&vcp->vc_mutex);
sb = vcp->vc_sb;
@@ -879,4 +958,3 @@ unlock_out:
iput(inode);
return 0;
}
-
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 4c74c768ae43..0f9c073d78d5 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2313,19 +2313,17 @@ SYSCALL_DEFINE6(epoll_pwait, int, epfd, struct epoll_event __user *, events,
size_t, sigsetsize)
{
int error;
- sigset_t ksigmask, sigsaved;
/*
* If the caller wants a certain signal mask to be set during the wait,
* we apply it here.
*/
- error = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ error = set_user_sigmask(sigmask, sigsetsize);
if (error)
return error;
error = do_epoll_wait(epfd, events, maxevents, timeout);
-
- restore_user_sigmask(sigmask, &sigsaved, error == -EINTR);
+ restore_saved_sigmask_unless(error == -EINTR);
return error;
}
@@ -2338,19 +2336,17 @@ COMPAT_SYSCALL_DEFINE6(epoll_pwait, int, epfd,
compat_size_t, sigsetsize)
{
long err;
- sigset_t ksigmask, sigsaved;
/*
* If the caller wants a certain signal mask to be set during the wait,
* we apply it here.
*/
- err = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ err = set_compat_user_sigmask(sigmask, sigsetsize);
if (err)
return err;
err = do_epoll_wait(epfd, events, maxevents, timeout);
-
- restore_user_sigmask(sigmask, &sigsaved, err == -EINTR);
+ restore_saved_sigmask_unless(err == -EINTR);
return err;
}
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index d5403b4004c9..bb0b27d88e50 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -407,7 +407,7 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
int offset = 0;
if (!is_known_namespace(xattr_name)) {
- strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
+ memcpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
offset += XATTR_MAC_OSX_PREFIX_LEN;
len += XATTR_MAC_OSX_PREFIX_LEN;
}
diff --git a/fs/io_uring.c b/fs/io_uring.c
index d682049c07b2..e2a66e12fbc6 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2400,7 +2400,6 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
const sigset_t __user *sig, size_t sigsz)
{
struct io_cq_ring *ring = ctx->cq_ring;
- sigset_t ksigmask, sigsaved;
int ret;
if (io_cqring_events(ring) >= min_events)
@@ -2410,21 +2409,17 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = set_compat_user_sigmask((const compat_sigset_t __user *)sig,
- &ksigmask, &sigsaved, sigsz);
+ sigsz);
else
#endif
- ret = set_user_sigmask(sig, &ksigmask,
- &sigsaved, sigsz);
+ ret = set_user_sigmask(sig, sigsz);
if (ret)
return ret;
}
ret = wait_event_interruptible(ctx->wait, io_cqring_events(ring) >= min_events);
-
- if (sig)
- restore_user_sigmask(sig, &sigsaved, ret == -ERESTARTSYS);
-
+ restore_saved_sigmask_unless(ret == -ERESTARTSYS);
if (ret == -ERESTARTSYS)
ret = -EINTR;
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 47d2651fd9dc..cb5629bd5fff 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -58,7 +58,8 @@ config PROC_VMCORE_DEVICE_DUMP
snapshot.
If you say Y here, the collected device dumps will be added
- as ELF notes to /proc/vmcore.
+ as ELF notes to /proc/vmcore. You can still disable device
+ dump using the kernel command line option 'novmcoredd'.
config PROC_SYSCTL
bool "Sysctl support (/proc/sys)" if EXPERT
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 5f8d215b3fd0..dbe43a50caf2 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -200,7 +200,8 @@ static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)
struct proc_dir_entry *pde = PDE(file_inode(file));
loff_t rv = -EINVAL;
if (use_pde(pde)) {
- loff_t (*llseek)(struct file *, loff_t, int);
+ typeof_member(struct file_operations, llseek) llseek;
+
llseek = pde->proc_fops->llseek;
if (!llseek)
llseek = default_llseek;
@@ -212,10 +213,11 @@ static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)
static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
{
- ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
struct proc_dir_entry *pde = PDE(file_inode(file));
ssize_t rv = -EIO;
if (use_pde(pde)) {
+ typeof_member(struct file_operations, read) read;
+
read = pde->proc_fops->read;
if (read)
rv = read(file, buf, count, ppos);
@@ -226,10 +228,11 @@ static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count,
static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
{
- ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *);
struct proc_dir_entry *pde = PDE(file_inode(file));
ssize_t rv = -EIO;
if (use_pde(pde)) {
+ typeof_member(struct file_operations, write) write;
+
write = pde->proc_fops->write;
if (write)
rv = write(file, buf, count, ppos);
@@ -242,8 +245,9 @@ static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts)
{
struct proc_dir_entry *pde = PDE(file_inode(file));
__poll_t rv = DEFAULT_POLLMASK;
- __poll_t (*poll)(struct file *, struct poll_table_struct *);
if (use_pde(pde)) {
+ typeof_member(struct file_operations, poll) poll;
+
poll = pde->proc_fops->poll;
if (poll)
rv = poll(file, pts);
@@ -256,8 +260,9 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne
{
struct proc_dir_entry *pde = PDE(file_inode(file));
long rv = -ENOTTY;
- long (*ioctl)(struct file *, unsigned int, unsigned long);
if (use_pde(pde)) {
+ typeof_member(struct file_operations, unlocked_ioctl) ioctl;
+
ioctl = pde->proc_fops->unlocked_ioctl;
if (ioctl)
rv = ioctl(file, cmd, arg);
@@ -271,8 +276,9 @@ static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned
{
struct proc_dir_entry *pde = PDE(file_inode(file));
long rv = -ENOTTY;
- long (*compat_ioctl)(struct file *, unsigned int, unsigned long);
if (use_pde(pde)) {
+ typeof_member(struct file_operations, compat_ioctl) compat_ioctl;
+
compat_ioctl = pde->proc_fops->compat_ioctl;
if (compat_ioctl)
rv = compat_ioctl(file, cmd, arg);
@@ -286,8 +292,9 @@ static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)
{
struct proc_dir_entry *pde = PDE(file_inode(file));
int rv = -EIO;
- int (*mmap)(struct file *, struct vm_area_struct *);
if (use_pde(pde)) {
+ typeof_member(struct file_operations, mmap) mmap;
+
mmap = pde->proc_fops->mmap;
if (mmap)
rv = mmap(file, vma);
@@ -305,7 +312,7 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
unsigned long rv = -EIO;
if (use_pde(pde)) {
- typeof(proc_reg_get_unmapped_area) *get_area;
+ typeof_member(struct file_operations, get_unmapped_area) get_area;
get_area = pde->proc_fops->get_unmapped_area;
#ifdef CONFIG_MMU
@@ -326,8 +333,8 @@ static int proc_reg_open(struct inode *inode, struct file *file)
{
struct proc_dir_entry *pde = PDE(inode);
int rv = 0;
- int (*open)(struct inode *, struct file *);
- int (*release)(struct inode *, struct file *);
+ typeof_member(struct file_operations, open) open;
+ typeof_member(struct file_operations, release) release;
struct pde_opener *pdeo;
/*
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index c74570736b24..36ad1b0d6259 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -499,6 +499,10 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
if (root->set_ownership)
root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);
+ else {
+ inode->i_uid = GLOBAL_ROOT_UID;
+ inode->i_gid = GLOBAL_ROOT_GID;
+ }
return inode;
}
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 57957c91c6df..7bcc92add72c 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/crash_dump.h>
#include <linux/list.h>
+#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
@@ -54,6 +55,9 @@ static struct proc_dir_entry *proc_vmcore;
/* Device Dump list and mutex to synchronize access to list */
static LIST_HEAD(vmcoredd_list);
static DEFINE_MUTEX(vmcoredd_mutex);
+
+static bool vmcoredd_disabled;
+core_param(novmcoredd, vmcoredd_disabled, bool, 0);
#endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */
/* Device Dump Size */
@@ -1452,6 +1456,11 @@ int vmcore_add_device_dump(struct vmcoredd_data *data)
size_t data_size;
int ret;
+ if (vmcoredd_disabled) {
+ pr_err_once("Device dump is disabled\n");
+ return -EINVAL;
+ }
+
if (!data || !strlen(data->dump_name) ||
!data->vmcoredd_callback || !data->size)
return -EINVAL;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 36346dc4cec0..4517a1394c6f 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -94,7 +94,7 @@ static int journal_join(struct reiserfs_transaction_handle *th,
struct super_block *sb);
static void release_journal_dev(struct super_block *super,
struct reiserfs_journal *journal);
-static int dirty_one_transaction(struct super_block *s,
+static void dirty_one_transaction(struct super_block *s,
struct reiserfs_journal_list *jl);
static void flush_async_commits(struct work_struct *work);
static void queue_log_writer(struct super_block *s);
@@ -1682,12 +1682,11 @@ next:
}
/* used by flush_commit_list */
-static int dirty_one_transaction(struct super_block *s,
+static void dirty_one_transaction(struct super_block *s,
struct reiserfs_journal_list *jl)
{
struct reiserfs_journal_cnode *cn;
struct reiserfs_journal_list *pjl;
- int ret = 0;
jl->j_state |= LIST_DIRTY;
cn = jl->j_realblock;
@@ -1716,7 +1715,6 @@ static int dirty_one_transaction(struct super_block *s,
}
cn = cn->next;
}
- return ret;
}
static int kupdate_transactions(struct super_block *s,
diff --git a/fs/select.c b/fs/select.c
index a4d8f6e8b63c..53a0c149f528 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -294,12 +294,14 @@ enum poll_time_type {
PT_OLD_TIMESPEC = 3,
};
-static int poll_select_copy_remaining(struct timespec64 *end_time,
- void __user *p,
- enum poll_time_type pt_type, int ret)
+static int poll_select_finish(struct timespec64 *end_time,
+ void __user *p,
+ enum poll_time_type pt_type, int ret)
{
struct timespec64 rts;
+ restore_saved_sigmask_unless(ret == -ERESTARTNOHAND);
+
if (!p)
return ret;
@@ -714,9 +716,7 @@ static int kern_select(int n, fd_set __user *inp, fd_set __user *outp,
}
ret = core_sys_select(n, inp, outp, exp, to);
- ret = poll_select_copy_remaining(&end_time, tvp, PT_TIMEVAL, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tvp, PT_TIMEVAL, ret);
}
SYSCALL_DEFINE5(select, int, n, fd_set __user *, inp, fd_set __user *, outp,
@@ -730,7 +730,6 @@ static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
const sigset_t __user *sigmask, size_t sigsetsize,
enum poll_time_type type)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -753,15 +752,12 @@ static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
return -EINVAL;
}
- ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = core_sys_select(n, inp, outp, exp, to);
- restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
- ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, type, ret);
}
/*
@@ -926,7 +922,7 @@ static int do_poll(struct poll_list *list, struct poll_wqueues *wait,
if (!count) {
count = wait->error;
if (signal_pending(current))
- count = -EINTR;
+ count = -ERESTARTNOHAND;
}
if (count || timed_out)
break;
@@ -965,7 +961,7 @@ static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
struct timespec64 *end_time)
{
struct poll_wqueues table;
- int err = -EFAULT, fdcount, len, size;
+ int err = -EFAULT, fdcount, len;
/* Allocate small arguments on the stack to save memory and be
faster - use long to make sure the buffer is aligned properly
on 64 bit archs to avoid unaligned access */
@@ -993,8 +989,8 @@ static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
break;
len = min(todo, POLLFD_PER_PAGE);
- size = sizeof(struct poll_list) + sizeof(struct pollfd) * len;
- walk = walk->next = kmalloc(size, GFP_KERNEL);
+ walk = walk->next = kmalloc(struct_size(walk, entries, len),
+ GFP_KERNEL);
if (!walk) {
err = -ENOMEM;
goto out_fds;
@@ -1041,7 +1037,7 @@ static long do_restart_poll(struct restart_block *restart_block)
ret = do_sys_poll(ufds, nfds, to);
- if (ret == -EINTR) {
+ if (ret == -ERESTARTNOHAND) {
restart_block->fn = do_restart_poll;
ret = -ERESTART_RESTARTBLOCK;
}
@@ -1062,7 +1058,7 @@ SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds,
ret = do_sys_poll(ufds, nfds, to);
- if (ret == -EINTR) {
+ if (ret == -ERESTARTNOHAND) {
struct restart_block *restart_block;
restart_block = &current->restart_block;
@@ -1086,7 +1082,6 @@ SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,
struct __kernel_timespec __user *, tsp, const sigset_t __user *, sigmask,
size_t, sigsetsize)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -1099,20 +1094,12 @@ SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,
return -EINVAL;
}
- ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = do_sys_poll(ufds, nfds, to);
-
- restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
- /* We can restart this syscall, usually */
- if (ret == -EINTR)
- ret = -ERESTARTNOHAND;
-
- ret = poll_select_copy_remaining(&end_time, tsp, PT_TIMESPEC, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);
}
#if defined(CONFIG_COMPAT_32BIT_TIME) && !defined(CONFIG_64BIT)
@@ -1121,7 +1108,6 @@ SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,
struct old_timespec32 __user *, tsp, const sigset_t __user *, sigmask,
size_t, sigsetsize)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -1134,20 +1120,12 @@ SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,
return -EINVAL;
}
- ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = do_sys_poll(ufds, nfds, to);
-
- restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
- /* We can restart this syscall, usually */
- if (ret == -EINTR)
- ret = -ERESTARTNOHAND;
-
- ret = poll_select_copy_remaining(&end_time, tsp, PT_OLD_TIMESPEC, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
}
#endif
@@ -1284,9 +1262,7 @@ static int do_compat_select(int n, compat_ulong_t __user *inp,
}
ret = compat_core_sys_select(n, inp, outp, exp, to);
- ret = poll_select_copy_remaining(&end_time, tvp, PT_OLD_TIMEVAL, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tvp, PT_OLD_TIMEVAL, ret);
}
COMPAT_SYSCALL_DEFINE5(select, int, n, compat_ulong_t __user *, inp,
@@ -1319,7 +1295,6 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
void __user *tsp, compat_sigset_t __user *sigmask,
compat_size_t sigsetsize, enum poll_time_type type)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -1342,15 +1317,12 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
return -EINVAL;
}
- ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_compat_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = compat_core_sys_select(n, inp, outp, exp, to);
- restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
- ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, type, ret);
}
COMPAT_SYSCALL_DEFINE6(pselect6_time64, int, n, compat_ulong_t __user *, inp,
@@ -1402,7 +1374,6 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds,
unsigned int, nfds, struct old_timespec32 __user *, tsp,
const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -1415,20 +1386,12 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds,
return -EINVAL;
}
- ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_compat_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = do_sys_poll(ufds, nfds, to);
-
- restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
- /* We can restart this syscall, usually */
- if (ret == -EINTR)
- ret = -ERESTARTNOHAND;
-
- ret = poll_select_copy_remaining(&end_time, tsp, PT_OLD_TIMESPEC, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
}
#endif
@@ -1437,7 +1400,6 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time64, struct pollfd __user *, ufds,
unsigned int, nfds, struct __kernel_timespec __user *, tsp,
const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
{
- sigset_t ksigmask, sigsaved;
struct timespec64 ts, end_time, *to = NULL;
int ret;
@@ -1450,20 +1412,12 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time64, struct pollfd __user *, ufds,
return -EINVAL;
}
- ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+ ret = set_compat_user_sigmask(sigmask, sigsetsize);
if (ret)
return ret;
ret = do_sys_poll(ufds, nfds, to);
-
- restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
- /* We can restart this syscall, usually */
- if (ret == -EINTR)
- ret = -ERESTARTNOHAND;
-
- ret = poll_select_copy_remaining(&end_time, tsp, PT_TIMESPEC, ret);
-
- return ret;
+ return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);
}
#endif
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 3d247c0d92aa..4ed0dca52ec8 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1407,11 +1407,9 @@ static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf)
struct super_block *sb = dentry->d_sb;
struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi;
unsigned flags = UFS_SB(sb)->s_flags;
- struct ufs_super_block_third *usb3;
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
mutex_lock(&UFS_SB(sb)->s_lock);
- usb3 = ubh_get_usb_third(uspi);
if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
buf->f_type = UFS2_MAGIC;
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-26 22:55:00 +0000