system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-14 23:39:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

ext4: Stop searching if PA doesn't satisfy non-extent file

Browse source 
If we come across a PA that matches the logical offset but is unable to
satisfy a non-extent file due to its physical start being higher than
that supported by non extent files, then simply stop searching for
another PA and break out of loop. This is because, since PAs don't
overlap, we won't be able to find another inode PA which can satisfy the
original request.

Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/42404ca29bd304ae2c962184c3c32a02e8eefcd0.1679731817.git.ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ojaswin Mujoo 2023-03-25 13:43:34 +05:30 committed by Theodore Ts'o
parent 19b8b035a7
commit e86a718228
1 changed files with 7 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
fs/ext4/mballoc.c
View file

@ -4380,8 +4380,13 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
/* non-extent files can't have physical blocks past 2^32 */
if (!(ext4_test_inode_flag(ac->ac_inode, EXT4_INODE_EXTENTS)) &&
(pa->pa_pstart + EXT4_C2B(sbi, pa->pa_len) >
EXT4_MAX_BLOCK_FILE_PHYS))
continue;
EXT4_MAX_BLOCK_FILE_PHYS)) {
/*
* Since PAs don't overlap, we won't find any
* other PA to satisfy this.
*/
break;
}
/* found preallocated blocks, use them */
spin_lock(&pa->pa_lock);