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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-11 12:06:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-11 12:06:51 -0700 |
| commit | 2e40ed24e1696e47e94e804d09ef88ecb6617201 (patch) | |
| tree | 0bfaad67ce53882dedabd881cc07c35b7af301fe /arch | |
| parent | 9106536c1aa37bcf60202ad93bb8b94bcd29f3f0 (diff) | |
| parent | 56675f8b9f9b15b024b8e3145fa289b004916ab7 (diff) | |
Merge tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"A followup fix for the parisc/SHM_COLOUR fix, also from Helge, which
is heading to stable.
And then just the io_uring equivalent of the RESOLVE_CACHED fix in
commit a0fc452a5d7f from last week for build_open_flags()"
* tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux:
io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc
io_uring: correct check for O_TMPFILE
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/sys_parisc.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index ca2d537e25b1..9915062d5243 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -27,17 +27,12 @@ #include <linux/elf-randomize.h> /* - * Construct an artificial page offset for the mapping based on the virtual + * Construct an artificial page offset for the mapping based on the physical * address of the kernel file mapping variable. - * If filp is zero the calculated pgoff value aliases the memory of the given - * address. This is useful for io_uring where the mapping shall alias a kernel - * address and a userspace adress where both the kernel and the userspace - * access the same memory region. */ -#define GET_FILP_PGOFF(filp, addr) \ - ((filp ? (((unsigned long) filp->f_mapping) >> 8) \ - & ((SHM_COLOUR-1) >> PAGE_SHIFT) : 0UL) \ - + (addr >> PAGE_SHIFT)) +#define GET_FILP_PGOFF(filp) \ + (filp ? (((unsigned long) filp->f_mapping) >> 8) \ + & ((SHM_COLOUR-1) >> PAGE_SHIFT) : 0UL) static unsigned long shared_align_offset(unsigned long filp_pgoff, unsigned long pgoff) @@ -117,7 +112,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, do_color_align = 0; if (filp || (flags & MAP_SHARED)) do_color_align = 1; - filp_pgoff = GET_FILP_PGOFF(filp, addr); + filp_pgoff = GET_FILP_PGOFF(filp); if (flags & MAP_FIXED) { /* Even MAP_FIXED mappings must reside within TASK_SIZE */ |