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| author | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:19:12 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:37:18 (GMT) |
| commit | 86ba38e6f5f2fbfe9b49e153ea89593b26482019 (patch) | |
| tree | f99d2906b0eafca507f37289e68052fc105cc2dc /fs/dcache.c | |
| parent | 07c8b57b111585a617b2b456497fc9b33c00743c (diff) | |
| download | linux-fsl-qoriq-86ba38e6f5f2fbfe9b49e153ea89593b26482019.tar.xz | |
Reset to 3.12.19
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index ae2a83e..8ef74f3 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -19,7 +19,6 @@ #include <linux/mm.h> #include <linux/fs.h> #include <linux/fsnotify.h> -#include <linux/delay.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/hash.h> @@ -555,7 +554,7 @@ dentry_kill(struct dentry *dentry, int unlock_on_failure) relock: if (unlock_on_failure) { spin_unlock(&dentry->d_lock); - cpu_chill(); + cpu_relax(); } return dentry; /* try again with same dentry */ } @@ -2392,7 +2391,7 @@ again: if (dentry->d_lockref.count == 1) { if (!spin_trylock(&inode->i_lock)) { spin_unlock(&dentry->d_lock); - cpu_chill(); + cpu_relax(); goto again; } dentry->d_flags &= ~DCACHE_CANT_MOUNT; @@ -2847,9 +2846,9 @@ static int prepend_name(char **buffer, int *buflen, struct qstr *name) u32 dlen = ACCESS_ONCE(name->len); char *p; - if (*buflen < dlen + 1) - return -ENAMETOOLONG; *buflen -= dlen + 1; + if (*buflen < 0) + return -ENAMETOOLONG; p = *buffer -= dlen + 1; *p++ = '/'; while (dlen--) { @@ -2894,6 +2893,7 @@ static int prepend_path(const struct path *path, restart: bptr = *buffer; blen = *buflen; + error = 0; dentry = path->dentry; vfsmnt = path->mnt; mnt = real_mount(vfsmnt); @@ -3122,19 +3122,22 @@ char *simple_dname(struct dentry *dentry, char *buffer, int buflen) /* * Write full pathname from the root of the filesystem into the buffer. */ -static char *__dentry_path(struct dentry *dentry, char *buf, int buflen) +static char *__dentry_path(struct dentry *d, char *buf, int buflen) { + struct dentry *dentry; char *end, *retval; int len, seq = 0; int error = 0; + if (buflen < 2) + goto Elong; + rcu_read_lock(); restart: + dentry = d; end = buf + buflen; len = buflen; prepend(&end, &len, "\0", 1); - if (buflen < 1) - goto Elong; /* Get '/' right */ retval = end-1; *retval = '/'; |