xiaomi-sm8450/android_kernel_xiaomi_sm8450
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wrappers for ->i_mutex access

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parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-01-22 15:40:57 -05:00
parent 57b8f112cf
commit 5955102c99
177 changed files with 908 additions and 883 deletions
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12
fs/ext2/ioctl.c
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@@ -51,10 +51,10 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
flags = ext2_mask_flags(inode->i_mode, flags);
mutex_lock(&inode->i_mutex);
inode_lock(inode);
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode)) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
ret = -EPERM;
goto setflags_out;
}
@@ -68,7 +68,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
*/
if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
ret = -EPERM;
goto setflags_out;
}
@@ -80,7 +80,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
ext2_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME_SEC;
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
mark_inode_dirty(inode);
setflags_out:
@@ -102,10 +102,10 @@ setflags_out:
goto setversion_out;
}
mutex_lock(&inode->i_mutex);
inode_lock(inode);
inode->i_ctime = CURRENT_TIME_SEC;
inode->i_generation = generation;
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
mark_inode_dirty(inode);
setversion_out: