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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:57 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:29 +1100 |
| commit | 34286d6662308d82aed891852d04c7c3a2649b16 (patch) | |
| tree | c4b7311404d302e7cb94df7a4690298e1059910a /fs/afs | |
| parent | 44a7d7a878c9cbb74f236ea755b25b6b2e26a9a9 (diff) | |
| download | lwn-34286d6662308d82aed891852d04c7c3a2649b16.tar.gz lwn-34286d6662308d82aed891852d04c7c3a2649b16.zip | |
fs: rcu-walk aware d_revalidate method
Require filesystems be aware of .d_revalidate being called in rcu-walk
mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning
-ECHILD from all implementations.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/dir.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/afs/dir.c b/fs/afs/dir.c index b8bb7e7148d0..34a3263d60a4 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -13,6 +13,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/fs.h> +#include <linux/namei.h> #include <linux/pagemap.h> #include <linux/ctype.h> #include <linux/sched.h> @@ -607,6 +608,9 @@ static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd) void *dir_version; int ret; + if (nd->flags & LOOKUP_RCU) + return -ECHILD; + vnode = AFS_FS_I(dentry->d_inode); if (dentry->d_inode) |