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authorBenny Halevy <bhalevy@panasas.com>2010-07-14 15:43:57 -0400
committerBoaz Harrosh <bharrosh@panasas.com>2011-05-29 20:54:36 +0300
commit8a1636c459cb7a4b32ba4024cd1b2ba21fba6aed (patch)
treef9c46f272b98ceb65f997f226d47da68c6fcac6b /fs/nfs/nfs4proc.c
parentcbe8260369c9f88eafa035cd327dc3e02fad528c (diff)
downloadblackbird-op-linux-8a1636c459cb7a4b32ba4024cd1b2ba21fba6aed.tar.gz
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pnfs: layoutret_on_setattr
With the objects layout security model, we have object capabilities that are associated with the layout and we anticipate that the server will issue a cb_layoutrecall for any setattr that changes security related attributes (user/group/mode/acl) or truncates the file. Therefore, the layout is returned before issuing the setattr to avoid the anticipated cb_layoutrecall. Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5b4124e4c22f..57340096c737 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2361,6 +2361,9 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
struct nfs4_state *state = NULL;
int status;
+ if (pnfs_ld_layoutret_on_setattr(inode))
+ pnfs_return_layout(inode);
+
nfs_fattr_init(fattr);
/* Search for an existing open(O_WRITE) file */
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