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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:23 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:18 +1100 |
| commit | fe15ce446beb3a33583af81ffe6c9d01a75314ed (patch) | |
| tree | bc8af66b6dd2d0f21a2a3f48a19975ae2cdbae4e /fs/proc | |
| parent | 5eef7fa905c814826f518aca2d414ca77508ce30 (diff) | |
| download | op-kernel-dev-fe15ce446beb3a33583af81ffe6c9d01a75314ed.zip op-kernel-dev-fe15ce446beb3a33583af81ffe6c9d01a75314ed.tar.gz | |
fs: change d_delete semantics
Change d_delete from a dentry deletion notification to a dentry caching
advise, more like ->drop_inode. Require it to be constant and idempotent,
and not take d_lock. This is how all existing filesystems use the callback
anyway.
This makes fine grained dentry locking of dput and dentry lru scanning
much simpler.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 2 | ||||
| -rw-r--r-- | fs/proc/generic.c | 2 | ||||
| -rw-r--r-- | fs/proc/proc_sysctl.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 1828451..d932fdb 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1744,7 +1744,7 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd) return 0; } -static int pid_delete_dentry(struct dentry * dentry) +static int pid_delete_dentry(const struct dentry * dentry) { /* Is the task we represent dead? * If so, then don't put the dentry on the lru list, diff --git a/fs/proc/generic.c b/fs/proc/generic.c index dd29f03..1d607be 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -400,7 +400,7 @@ static const struct inode_operations proc_link_inode_operations = { * smarter: we could keep a "volatile" flag in the * inode to indicate which ones to keep. */ -static int proc_delete_dentry(struct dentry * dentry) +static int proc_delete_dentry(const struct dentry * dentry) { return 1; } diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index b652cb0..a256d77 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -392,7 +392,7 @@ static int proc_sys_revalidate(struct dentry *dentry, struct nameidata *nd) return !PROC_I(dentry->d_inode)->sysctl->unregistering; } -static int proc_sys_delete(struct dentry *dentry) +static int proc_sys_delete(const struct dentry *dentry) { return !!PROC_I(dentry->d_inode)->sysctl->unregistering; } |
