diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-02-10 08:48:34 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-04-17 18:01:14 +0200 |
| commit | 544fe4a903ce71fb8ecbc159db6f245ef3f691fe (patch) | |
| tree | 3342253b55769ba213b2114cec3db34ba25078c0 /fs/btrfs/lzo.c | |
| parent | 18d758a2d81a97b9a54a37d535870ce3170cc208 (diff) | |
btrfs: embed a btrfs_bio into struct compressed_bio
Embed a btrfs_bio into struct compressed_bio. This avoids potential
(so far theoretical) deadlocks due to nesting of btrfs_bioset allocations
for the original read bio and the compressed bio, and avoids an extra
memory allocation in the I/O path.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/lzo.c')
| -rw-r--r-- | fs/btrfs/lzo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c index 71f6d8302d50..dc66ee98989e 100644 --- a/fs/btrfs/lzo.c +++ b/fs/btrfs/lzo.c @@ -17,6 +17,7 @@ #include "compression.h" #include "ctree.h" #include "super.h" +#include "btrfs_inode.h" #define LZO_LEN 4 @@ -329,7 +330,7 @@ static void copy_compressed_segment(struct compressed_bio *cb, int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb) { struct workspace *workspace = list_entry(ws, struct workspace, list); - const struct btrfs_fs_info *fs_info = btrfs_sb(cb->inode->i_sb); + const struct btrfs_fs_info *fs_info = cb->bbio.inode->root->fs_info; const u32 sectorsize = fs_info->sectorsize; char *kaddr; int ret; |