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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2012-01-05 10:42:17 -0600 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2012-01-05 10:51:44 -0600 |
| commit | b6054793069bf08fcf220fff5fb33735d5493594 (patch) | |
| tree | 44e4e3bded86642f35d183be9166ac78c1629a11 /fs/9p/vfs_inode.c | |
| parent | df345c674b6366952a21a67604c8f6d489bb7ea7 (diff) | |
| download | linux-stable-b6054793069bf08fcf220fff5fb33735d5493594.tar.gz linux-stable-b6054793069bf08fcf220fff5fb33735d5493594.tar.bz2 linux-stable-b6054793069bf08fcf220fff5fb33735d5493594.zip | |
fs/9p: We should not allocate a new inode when creating hardlines.
Don't do new_inode_from fid in case of hardlink creation. This ensures
that link count for hardlink files get updated properly. Earlier link count
was not updated on removing a hardlink with cache mode enabled.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/vfs_inode.c')
| -rw-r--r-- | fs/9p/vfs_inode.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index cf3dd6bc537e..c8fe480d0db0 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -680,26 +680,31 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir, goto error; } - /* now walk from the parent so we can get unopened fid */ - fid = p9_client_walk(dfid, 1, &name, 1); - if (IS_ERR(fid)) { - err = PTR_ERR(fid); - p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); - fid = NULL; - goto error; - } - - /* instantiate inode and assign the unopened fid to the dentry */ - inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); - if (IS_ERR(inode)) { - err = PTR_ERR(inode); - p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err); - goto error; + if (!(perm & P9_DMLINK)) { + /* now walk from the parent so we can get unopened fid */ + fid = p9_client_walk(dfid, 1, &name, 1); + if (IS_ERR(fid)) { + err = PTR_ERR(fid); + p9_debug(P9_DEBUG_VFS, + "p9_client_walk failed %d\n", err); + fid = NULL; + goto error; + } + /* + * instantiate inode and assign the unopened fid to the dentry + */ + inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); + p9_debug(P9_DEBUG_VFS, + "inode creation failed %d\n", err); + goto error; + } + err = v9fs_fid_add(dentry, fid); + if (err < 0) + goto error; + d_instantiate(dentry, inode); } - err = v9fs_fid_add(dentry, fid); - if (err < 0) - goto error; - d_instantiate(dentry, inode); return ofid; error: if (ofid) |