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ext4: remove obsolete comment from ext4_can_extents_be_merged()

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Support for unwritten extents was added to ext4 a long time ago, so
remove a misleading comment that says they're a future feature.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20191231180444.46586-7-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 12:04:42 -06:00 committed by Theodore Ts'o
parent adde81cfd5
commit 61a6cb49da
1 changed files with 0 additions and 5 deletions
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5
fs/ext4/extents.c
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@ -1716,11 +1716,6 @@ static int ext4_can_extents_be_merged(struct inode *inode,
le32_to_cpu(ex2->ee_block))
return 0;
/*
* To allow future support for preallocated extents to be added
* as an RO_COMPAT feature, refuse to merge to extents if
* this can result in the top bit of ee_len being set.
*/
if (ext1_ee_len + ext2_ee_len > EXT_INIT_MAX_LEN)
return 0;