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author | H. Peter Anvin <hpa@zytor.com> | 2010-04-29 16:53:17 -0700 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2010-04-29 16:53:17 -0700 |
commit | d9c5841e22231e4e49fd0a1004164e6fce59b7a6 (patch) | |
tree | e1f589c46b3ff79bbe7b1b2469f6362f94576da6 /fs/9p/fid.c | |
parent | x86: Fix LOCK_PREFIX_HERE for uniprocessor build (diff) | |
parent | x86-64: Reduce SMP locks table size (diff) | |
download | linux-dev-d9c5841e22231e4e49fd0a1004164e6fce59b7a6.tar.xz linux-dev-d9c5841e22231e4e49fd0a1004164e6fce59b7a6.zip |
Merge branch 'x86/asm' into x86/atomic
Merge reason:
Conflict between LOCK_PREFIX_HERE and relative alternatives
pointers
Resolved Conflicts:
arch/x86/include/asm/alternative.h
arch/x86/kernel/alternative.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'fs/9p/fid.c')
-rw-r--r-- | fs/9p/fid.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/9p/fid.c b/fs/9p/fid.c index 14d944204571..7317b39b2815 100644 --- a/fs/9p/fid.c +++ b/fs/9p/fid.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <linux/errno.h> #include <linux/fs.h> +#include <linux/slab.h> #include <linux/sched.h> #include <linux/idr.h> #include <net/9p/9p.h> @@ -110,7 +111,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) { int i, n, l, clone, any, access; u32 uid; - struct p9_fid *fid; + struct p9_fid *fid, *old_fid = NULL; struct dentry *d, *ds; struct v9fs_session_info *v9ses; char **wnames, *uname; @@ -151,7 +152,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) if (access == V9FS_ACCESS_SINGLE) return ERR_PTR(-EPERM); - if (v9fs_extended(v9ses)) + if (v9fs_proto_dotu(v9ses)) uname = NULL; else uname = v9ses->uname; @@ -183,10 +184,18 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) l = min(n - i, P9_MAXWELEM); fid = p9_client_walk(fid, l, &wnames[i], clone); if (IS_ERR(fid)) { + if (old_fid) { + /* + * If we fail, clunk fid which are mapping + * to path component and not the last component + * of the path. + */ + p9_client_clunk(old_fid); + } kfree(wnames); return fid; } - + old_fid = fid; i += l; clone = 0; } |