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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-21 15:22:44 -0700 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-06-29 12:57:36 +0400 |
| commit | da53be12bbb4fabbe2e9f6f908de0cf478b5161d (patch) | |
| tree | a0436fb462a7b16c82e58336e17c55b814f7be6b /fs/fat/namei_msdos.c | |
| parent | 642b704cd7a29be0b8900971eb525086c1c995b7 (diff) | |
| download | lwn-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.tar.gz lwn-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.zip | |
Don't pass inode to ->d_hash() and ->d_compare()
Instances either don't look at it at all (the majority of cases) or
only want it to find the superblock (which can be had as dentry->d_sb).
A few cases that want more are actually safe with dentry->d_inode -
the only precaution needed is the check that it hadn't been replaced with
NULL by rmdir() or by overwriting rename(), which case should be simply
treated as cache miss.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fat/namei_msdos.c')
| -rw-r--r-- | fs/fat/namei_msdos.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c index 081b759cff83..a783b0e1272a 100644 --- a/fs/fat/namei_msdos.c +++ b/fs/fat/namei_msdos.c @@ -148,8 +148,7 @@ static int msdos_find(struct inode *dir, const unsigned char *name, int len, * that the existing dentry can be used. The msdos fs routines will * return ENOENT or EINVAL as appropriate. */ -static int msdos_hash(const struct dentry *dentry, const struct inode *inode, - struct qstr *qstr) +static int msdos_hash(const struct dentry *dentry, struct qstr *qstr) { struct fat_mount_options *options = &MSDOS_SB(dentry->d_sb)->options; unsigned char msdos_name[MSDOS_NAME]; @@ -165,8 +164,7 @@ static int msdos_hash(const struct dentry *dentry, const struct inode *inode, * Compare two msdos names. If either of the names are invalid, * we fall back to doing the standard name comparison. */ -static int msdos_cmp(const struct dentry *parent, const struct inode *pinode, - const struct dentry *dentry, const struct inode *inode, +static int msdos_cmp(const struct dentry *parent, const struct dentry *dentry, unsigned int len, const char *str, const struct qstr *name) { struct fat_mount_options *options = &MSDOS_SB(parent->d_sb)->options; |