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| author | Jonathan Corbet <corbet@lwn.net> | 2008-05-30 01:14:05 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-02 23:06:27 +0200 |
| commit | 9c20616c385ebeaa30257ef5d35e8f346db4ee32 (patch) | |
| tree | 1042f35fee812262abbacd11f4d7ae523c69c893 /fs/fat | |
| parent | x86-mce: BKL pushdown (diff) | |
| download | linux-9c20616c385ebeaa30257ef5d35e8f346db4ee32.tar.xz linux-9c20616c385ebeaa30257ef5d35e8f346db4ee32.zip | |
Make FAT users happier by not deadlocking
The FAT BKL removal patch can cause deadlocks. It turns out that the new
lock_super() calls are unneeded, remove them (as directed by Linus).
Reported-by: "Tony Luck" <tony.luck@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/file.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c index 7059928fb351..bdf91e97397d 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -11,7 +11,6 @@ #include <linux/mount.h> #include <linux/time.h> #include <linux/msdos_fs.h> -#include <linux/smp_lock.h> #include <linux/buffer_head.h> #include <linux/writeback.h> #include <linux/backing-dev.h> @@ -229,8 +228,7 @@ static int fat_free(struct inode *inode, int skip) void fat_truncate(struct inode *inode) { - struct super_block *sb = inode->i_sb; - struct msdos_sb_info *sbi = MSDOS_SB(sb); + struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb); const unsigned int cluster_size = sbi->cluster_size; int nr_clusters; @@ -243,9 +241,7 @@ void fat_truncate(struct inode *inode) nr_clusters = (inode->i_size + (cluster_size - 1)) >> sbi->cluster_bits; - lock_super(sb); fat_free(inode, nr_clusters); - unlock_super(sb); fat_flush_inodes(inode->i_sb, inode, NULL); } @@ -298,14 +294,11 @@ static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode) int fat_setattr(struct dentry *dentry, struct iattr *attr) { - struct super_block *sb = dentry->d_sb; struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb); struct inode *inode = dentry->d_inode; int mask, error = 0; unsigned int ia_valid; - lock_super(sb); - /* * Expand the file. Since inode_setattr() updates ->i_size * before calling the ->truncate(), but FAT needs to fill the @@ -358,7 +351,6 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr) mask = sbi->options.fs_fmask; inode->i_mode &= S_IFMT | (S_IRWXUGO & ~mask); out: - unlock_super(sb); return error; } EXPORT_SYMBOL_GPL(fat_setattr); |