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authorDavid Howells <dhowells@redhat.com>2018-04-06 14:17:25 +0100
committerDavid Howells <dhowells@redhat.com>2018-04-09 21:54:48 +0100
commit63a4681ff39cb63314b8ff41319e70fb0e606ed2 (patch)
tree0b60198db6c9a21efd1f1dfda2a292ad63df38e8 /fs/afs/proc.c
parent0031763698d197d779fcafe5685f6e7818b70d32 (diff)
downloadlinux-63a4681ff39cb63314b8ff41319e70fb0e606ed2.tar.bz2
afs: Locally edit directory data for mkdir/create/unlink/...
Locally edit the contents of an AFS directory upon a successful inode operation that modifies that directory (such as mkdir, create and unlink) so that we can avoid the current practice of re-downloading the directory after each change. This is viable provided that the directory version number we get back from the modifying RPC op is exactly incremented by 1 from what we had previously. The data in the directory contents is in a defined format that we have to parse locally to perform lookups and readdir, so modifying isn't a problem. If the edit fails, we just clear the VALID flag on the directory and it will be reloaded next time it is needed. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/proc.c')
-rw-r--r--fs/afs/proc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 6f5a000f44a7..3212bce0d4fb 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -918,6 +918,10 @@ static int afs_proc_stats_show(struct seq_file *m, void *v)
seq_printf(m, "dir-data: rdpg=%u\n",
atomic_read(&net->n_read_dir));
+
+ seq_printf(m, "dir-edit: cr=%u rm=%u\n",
+ atomic_read(&net->n_dir_cr),
+ atomic_read(&net->n_dir_rm));
return 0;
}