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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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8
fs/ext4/namei.c
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@@ -2118,7 +2118,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
goto out;
if (blocks == 1 && !dx_fallback &&
EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX)) {
ext4_has_feature_dir_index(sb)) {
retval = make_indexed_dir(handle, &fname, dentry,
inode, bh);
bh = NULL; /* make_indexed_dir releases bh */
@@ -2388,8 +2388,7 @@ static void ext4_inc_count(handle_t *handle, struct inode *inode)
/* limit is 16-bit i_links_count */
if (inode->i_nlink >= EXT4_LINK_MAX || inode->i_nlink == 2) {
set_nlink(inode, 1);
EXT4_SET_RO_COMPAT_FEATURE(inode->i_sb,
EXT4_FEATURE_RO_COMPAT_DIR_NLINK);
ext4_set_feature_dir_nlink(inode->i_sb);
}
}
}
@@ -3352,8 +3351,7 @@ static int ext4_setent(handle_t *handle, struct ext4_renament *ent,
if (retval)
return retval;
ent->de->inode = cpu_to_le32(ino);
if (EXT4_HAS_INCOMPAT_FEATURE(ent->dir->i_sb,
EXT4_FEATURE_INCOMPAT_FILETYPE))
if (ext4_has_feature_filetype(ent->dir->i_sb))
ent->de->file_type = file_type;
ent->dir->i_version++;
ent->dir->i_ctime = ent->dir->i_mtime =