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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:27 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:19 +1100 |
| commit | 621e155a3591962420eacdd39f6f0aa29ceb221e (patch) | |
| tree | 387a9fb396f1bf24514b712c294182e36ba51076 /fs/adfs | |
| parent | fb2d5b86aff355a27ebfc132d3c99f4a940cc3fe (diff) | |
| download | linux-stable-621e155a3591962420eacdd39f6f0aa29ceb221e.tar.gz linux-stable-621e155a3591962420eacdd39f6f0aa29ceb221e.tar.bz2 linux-stable-621e155a3591962420eacdd39f6f0aa29ceb221e.zip | |
fs: change d_compare for rcu-walk
Change d_compare so it may be called from lock-free RCU lookups. This
does put significant restrictions on what may be done from the callback,
however there don't seem to have been any problems with in-tree fses.
If some strange use case pops up that _really_ cannot cope with the
rcu-walk rules, we can just add new rcu-unaware callbacks, which would
cause name lookup to drop out of rcu-walk mode.
For in-tree filesystems, this is just a mechanical change.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/adfs')
| -rw-r--r-- | fs/adfs/dir.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c index f4287e4de744..c8ed66162bd4 100644 --- a/fs/adfs/dir.c +++ b/fs/adfs/dir.c @@ -237,17 +237,19 @@ adfs_hash(struct dentry *parent, struct qstr *qstr) * requirements of the underlying filesystem. */ static int -adfs_compare(struct dentry *parent, struct qstr *entry, struct qstr *name) +adfs_compare(const struct dentry *parent, const struct inode *pinode, + const struct dentry *dentry, const struct inode *inode, + unsigned int len, const char *str, const struct qstr *name) { int i; - if (entry->len != name->len) + if (len != name->len) return 1; for (i = 0; i < name->len; i++) { char a, b; - a = entry->name[i]; + a = str[i]; b = name->name[i]; if (a >= 'A' && a <= 'Z') |