ext4: only check dquot_initialize_needed() when debugging
authorTheodore Ts'o <tytso@mit.edu>
Thu, 8 Jun 2023 14:06:40 +0000 (10:06 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 8 Jun 2023 14:06:40 +0000 (10:06 -0400)
commitdea9d8f7643fab07bf89a1155f1f94f37d096a5e
tree9b8efb75f3ffe7a7c22100b0b2d46527ed256a0a
parent1b29243933098cdbc31b579b5616e183b4275e2f
ext4: only check dquot_initialize_needed() when debugging

ext4_xattr_block_set() relies on its caller to call dquot_initialize()
on the inode.  To assure that this has happened there are WARN_ON
checks.  Unfortunately, this is subject to false positives if there is
an antagonist thread which is flipping the file system at high rates
between r/o and rw.  So only do the check if EXT4_XATTR_DEBUG is
enabled.

Link: https://lore.kernel.org/r/20230608044056.GA1418535@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/ext4/xattr.c