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| author |   Chengguang Xu <cgxu519@gmx.com> | 2018-10-06 22:40:34 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2018-10-06 22:40:34 -0400 |
| commit | 6fd941784b8ac3e74313f7112f0586076dc36544 (patch) | |
| tree | 9868e0e24c6fc12c560ff33e993f2c11250c6abd /fs/ext4/ext4.h | |
| parent | docs: promote the ext4 data structures book to top level (diff) | |
| download | linux-dev-6fd941784b8ac3e74313f7112f0586076dc36544.tar.xz linux-dev-6fd941784b8ac3e74313f7112f0586076dc36544.zip | |
ext4: cache NULL when both default_acl and acl are NULL
default_acl and acl of newly created inode will be initiated as
ACL_NOT_CACHED in vfs function inode_init_always() and later will be
updated by calling xxx_init_acl() in specific filesystems. However,
when default_acl and acl are NULL then they keep the value of
ACL_NOT_CACHED. This patch changes the code to cache NULL for acl /
default_acl in this case to save unnecessary ACL lookup attempt.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4/ext4.h')
0 files changed, 0 insertions, 0 deletions