summaryrefslogtreecommitdiff
path: root/fs/ext4/mballoc.c
diff options
context:
space:
mode:
authorTheodore Ts'o <tytso@mit.edu>2020-03-28 19:33:43 -0400
committerTheodore Ts'o <tytso@mit.edu>2020-04-01 17:29:06 -0400
commit54d3adbc29f0c7c53890da1683e629cd220d7201 (patch)
tree485a4098e4523ed56c97b308c324f8cf91e5a51f /fs/ext4/mballoc.c
parentdf41460a21b06a76437af040d90ccee03888e8e5 (diff)
ext4: save all error info in save_error_info() and drop ext4_set_errno()
Using a separate function, ext4_set_errno() to set the errno is problematic because it doesn't do the right thing once s_last_error_errorcode is non-zero. It's also less racy to set all of the error information all at once. (Also, as a bonus, it shrinks code size slightly.) Link: https://lore.kernel.org/r/20200329020404.686965-1-tytso@mit.edu Fixes: 878520ac45f9 ("ext4: save the error code which triggered...") Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
-rw-r--r--fs/ext4/mballoc.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 97cd1a2201a2..87c85be4c12e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3921,9 +3921,9 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
bitmap_bh = ext4_read_block_bitmap(sb, group);
if (IS_ERR(bitmap_bh)) {
err = PTR_ERR(bitmap_bh);
- ext4_set_errno(sb, -err);
- ext4_error(sb, "Error %d reading block bitmap for %u",
- err, group);
+ ext4_error_err(sb, -err,
+ "Error %d reading block bitmap for %u",
+ err, group);
return 0;
}
@@ -4090,18 +4090,16 @@ repeat:
err = ext4_mb_load_buddy_gfp(sb, group, &e4b,
GFP_NOFS|__GFP_NOFAIL);
if (err) {
- ext4_set_errno(sb, -err);
- ext4_error(sb, "Error %d loading buddy information for %u",
- err, group);
+ ext4_error_err(sb, -err, "Error %d loading buddy information for %u",
+ err, group);
continue;
}
bitmap_bh = ext4_read_block_bitmap(sb, group);
if (IS_ERR(bitmap_bh)) {
err = PTR_ERR(bitmap_bh);
- ext4_set_errno(sb, -err);
- ext4_error(sb, "Error %d reading block bitmap for %u",
- err, group);
+ ext4_error_err(sb, -err, "Error %d reading block bitmap for %u",
+ err, group);
ext4_mb_unload_buddy(&e4b);
continue;
}
@@ -4355,9 +4353,8 @@ ext4_mb_discard_lg_preallocations(struct super_block *sb,
err = ext4_mb_load_buddy_gfp(sb, group, &e4b,
GFP_NOFS|__GFP_NOFAIL);
if (err) {
- ext4_set_errno(sb, -err);
- ext4_error(sb, "Error %d loading buddy information for %u",
- err, group);
+ ext4_error_err(sb, -err, "Error %d loading buddy information for %u",
+ err, group);
continue;
}
ext4_lock_group(sb, group);