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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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20
fs/f2fs/file.c
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@@ -333,7 +333,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
loff_t isize;
int err = 0;
mutex_lock(&inode->i_mutex);
inode_lock(inode);
isize = i_size_read(inode);
if (offset >= isize)
@@ -388,10 +388,10 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
found:
if (whence == SEEK_HOLE && data_ofs > isize)
data_ofs = isize;
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return vfs_setpos(file, data_ofs, maxbytes);
fail:
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return -ENXIO;
}
@@ -1219,7 +1219,7 @@ static long f2fs_fallocate(struct file *file, int mode,
FALLOC_FL_INSERT_RANGE))
return -EOPNOTSUPP;
mutex_lock(&inode->i_mutex);
inode_lock(inode);
if (mode & FALLOC_FL_PUNCH_HOLE) {
if (offset >= inode->i_size)
@@ -1243,7 +1243,7 @@ static long f2fs_fallocate(struct file *file, int mode,
}
out:
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
trace_f2fs_fallocate(inode, mode, offset, len, ret);
return ret;
@@ -1307,13 +1307,13 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
flags = f2fs_mask_flags(inode->i_mode, flags);
mutex_lock(&inode->i_mutex);
inode_lock(inode);
oldflags = fi->i_flags;
if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
ret = -EPERM;
goto out;
}
@@ -1322,7 +1322,7 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
flags = flags & FS_FL_USER_MODIFIABLE;
flags |= oldflags & ~FS_FL_USER_MODIFIABLE;
fi->i_flags = flags;
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
f2fs_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME;
@@ -1667,7 +1667,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
f2fs_balance_fs(sbi, true);
mutex_lock(&inode->i_mutex);
inode_lock(inode);
/* writeback all dirty pages in the range */
err = filemap_write_and_wait_range(inode->i_mapping, range->start,
@@ -1778,7 +1778,7 @@ do_map:
clear_out:
clear_inode_flag(F2FS_I(inode), FI_DO_DEFRAG);
out:
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
if (!err)
range->len = (u64)total << PAGE_CACHE_SHIFT;
return err;