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ext4: remove redundant S_ISREG() checks from ext4_fallocate()

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ext4_fallocate() is only used in the file_operations for regular files.
Also, the VFS only allows fallocate() on regular files and block
devices, but block devices always use blkdev_fallocate().  For both of
these reasons, S_ISREG() is always true in ext4_fallocate().

Therefore the S_ISREG() checks in ext4_zero_range(),
ext4_collapse_range(), ext4_insert_range(), and ext4_punch_hole() are
redundant.  Remove them.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20191231180444.46586-4-ebiggers@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Eric Biggers
2019-12-31 12:04:39 -06:00
committed by Theodore Ts'o
parent 9b02e4987a
commit a1180994f5
2 changed files with 0 additions and 12 deletions
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3
fs/ext4/inode.c
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@@ -3940,9 +3940,6 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
unsigned int credits;
int ret = 0;
if (!S_ISREG(inode->i_mode))
return -EOPNOTSUPP;
trace_ext4_punch_hole(inode, offset, length, 0);
ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);