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ext4: clean up feature test macros with predicate functions

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Create separate predicate functions to test/set/clear feature flags,
thereby replacing the wordy old macros.  Furthermore, clean out the
places where we open-coded feature tests.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Darrick J. Wong
2015-10-17 16:18:43 -04:00
committed by Theodore Ts'o
parent 6a797d2737
commit e2b911c535
15 changed files with 252 additions and 184 deletions
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4
fs/ext4/xattr.c
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@@ -525,12 +525,12 @@ errout:
static void ext4_xattr_update_super_block(handle_t *handle,
struct super_block *sb)
{
if (EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR))
if (ext4_has_feature_xattr(sb))
return;
BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR);
ext4_set_feature_xattr(sb);
ext4_handle_dirty_super(handle, sb);
}
}