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author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:35 +1100 |
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committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:22 +1100 |
commit | b23fb0a60379a95e10c671f646b259ea2558421e (patch) | |
tree | 7c3644b91241d32fda502a7be0b78e4c225f8091 /fs/affs | |
parent | 2fd6b7f50797f2e993eea59e0a0b8c6399c811dc (diff) | |
download | linux-exynos-b23fb0a60379a95e10c671f646b259ea2558421e.tar.gz linux-exynos-b23fb0a60379a95e10c671f646b259ea2558421e.tar.bz2 linux-exynos-b23fb0a60379a95e10c671f646b259ea2558421e.zip |
fs: scale inode alias list
Add a new lock, dcache_inode_lock, to protect the inode's i_dentry list
from concurrent modification. d_alias is also protected by d_lock.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/affs')
-rw-r--r-- | fs/affs/amigaffs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c index 7d0f0a30f7a3..2321cc92d44f 100644 --- a/fs/affs/amigaffs.c +++ b/fs/affs/amigaffs.c @@ -129,6 +129,7 @@ affs_fix_dcache(struct dentry *dentry, u32 entry_ino) struct list_head *head, *next; spin_lock(&dcache_lock); + spin_lock(&dcache_inode_lock); head = &inode->i_dentry; next = head->next; while (next != head) { @@ -139,6 +140,7 @@ affs_fix_dcache(struct dentry *dentry, u32 entry_ino) } next = next->next; } + spin_unlock(&dcache_inode_lock); spin_unlock(&dcache_lock); } |