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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-05 21:12:22 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-14 09:15:26 -0400 |
| commit | 70e9b3571107b88674cd55ae4bed33f76261e7d3 (patch) | |
| tree | a22a2cd29b3075ddb9fed4305fd0ff88c07d5963 /fs/namei.c | |
| parent | 951361f954596bd134d4270df834f47d151f98a6 (diff) | |
| download | lwn-70e9b3571107b88674cd55ae4bed33f76261e7d3.tar.gz lwn-70e9b3571107b88674cd55ae4bed33f76261e7d3.zip | |
get rid of nd->file
Don't stash the struct file * used as starting point of walk in nameidata;
pass file ** to path_init() instead.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/fs/namei.c b/fs/namei.c index 85f6e39b4034..a260a306daf5 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1498,7 +1498,8 @@ lookup_parent: return err; } -static int path_init(int dfd, const char *name, unsigned int flags, struct nameidata *nd) +static int path_init(int dfd, const char *name, unsigned int flags, + struct nameidata *nd, struct file **fp) { int retval = 0; int fput_needed; @@ -1508,7 +1509,6 @@ static int path_init(int dfd, const char *name, unsigned int flags, struct namei nd->flags = flags | LOOKUP_JUMPED; nd->depth = 0; nd->root.mnt = NULL; - nd->file = NULL; if (*name=='/') { if (flags & LOOKUP_RCU) { @@ -1557,7 +1557,7 @@ static int path_init(int dfd, const char *name, unsigned int flags, struct namei nd->path = file->f_path; if (flags & LOOKUP_RCU) { if (fput_needed) - nd->file = file; + *fp = file; nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq); br_read_lock(vfsmount_lock); rcu_read_lock(); @@ -1580,6 +1580,7 @@ out_fail: static int path_lookupat(int dfd, const char *name, unsigned int flags, struct nameidata *nd) { + struct file *base = NULL; int retval; /* @@ -1596,7 +1597,7 @@ static int path_lookupat(int dfd, const char *name, * be handled by restarting a traditional ref-walk (which will always * be able to complete). */ - retval = path_init(dfd, name, flags, nd); + retval = path_init(dfd, name, flags, nd, &base); if (unlikely(retval)) return retval; @@ -1614,10 +1615,8 @@ static int path_lookupat(int dfd, const char *name, if (!retval) retval = handle_reval_path(nd); - if (nd->file) { - fput(nd->file); - nd->file = NULL; - } + if (base) + fput(base); if (nd->root.mnt) { path_put(&nd->root); |