A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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wrappers for ->i_mutex access

Browse source 
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 <[email protected]>
This commit is contained in:
Al Viro 2016-01-22 15:40:57 -05:00
commit 5955102c99
177 changed files with 908 additions and 883 deletions
Download patch file Download diff file Expand all files Collapse all files

6
fs/jfs/file.c
View file

@ -38,17 +38,17 @@ int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
if (rc)
return rc;
mutex_lock(&inode->i_mutex);
inode_lock(inode);
if (!(inode->i_state & I_DIRTY_ALL) ||
(datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
/* Make sure committed changes hit the disk */
jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return rc;
}
rc |= jfs_commit_inode(inode, 1);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return rc ? -EIO : 0;
}

6
fs/jfs/ioctl.c
View file

@ -96,7 +96,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
/* Lock against other parallel changes of flags */
mutex_lock(&inode->i_mutex);
inode_lock(inode);
jfs_get_inode_flags(jfs_inode);
oldflags = jfs_inode->mode2;
@ -109,7 +109,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
((flags ^ oldflags) &
(JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
err = -EPERM;
goto setflags_out;
}
@ -120,7 +120,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
jfs_inode->mode2 = flags;
jfs_set_inode_flags(inode);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
setflags_out:

6
fs/jfs/super.c
View file

@ -792,7 +792,7 @@ static ssize_t jfs_quota_write(struct super_block *sb, int type,
struct buffer_head tmp_bh;
struct buffer_head *bh;
mutex_lock(&inode->i_mutex);
inode_lock(inode);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
@ -824,7 +824,7 @@ static ssize_t jfs_quota_write(struct super_block *sb, int type,
}
out:
if (len == towrite) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return err;
}
if (inode->i_size < off+len-towrite)
@ -832,7 +832,7 @@ out:
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return len - towrite;
}