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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2008-01-28 23:58:27 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-01-28 23:58:27 -0500
commit99e6f829a854daa6d56006cad51156e98863e73a (patch)
treefff435d898ce3db5492252a241531d4016ba3b65 /fs/ext4/super.c
parent2aa9fc4c405467f6afbbb2162ff8afaced47d99b (diff)
downloadblackbird-op-linux-99e6f829a854daa6d56006cad51156e98863e73a.tar.gz
blackbird-op-linux-99e6f829a854daa6d56006cad51156e98863e73a.zip
ext4: Introduce ext4_update_*_feature
Introduce ext4_update_*_feature and use them instead of opencoding. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index df8842b43544..4d7f33f79552 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -373,6 +373,66 @@ void ext4_update_dynamic_rev(struct super_block *sb)
*/
}
+int ext4_update_compat_feature(handle_t *handle,
+ struct super_block *sb, __u32 compat)
+{
+ int err = 0;
+ if (!EXT4_HAS_COMPAT_FEATURE(sb, compat)) {
+ err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh);
+ if (err)
+ return err;
+ EXT4_SET_COMPAT_FEATURE(sb, compat);
+ sb->s_dirt = 1;
+ handle->h_sync = 1;
+ BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
+ "call ext4_journal_dirty_met adata");
+ err = ext4_journal_dirty_metadata(handle,
+ EXT4_SB(sb)->s_sbh);
+ }
+ return err;
+}
+
+int ext4_update_rocompat_feature(handle_t *handle,
+ struct super_block *sb, __u32 rocompat)
+{
+ int err = 0;
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb, rocompat)) {
+ err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh);
+ if (err)
+ return err;
+ EXT4_SET_RO_COMPAT_FEATURE(sb, rocompat);
+ sb->s_dirt = 1;
+ handle->h_sync = 1;
+ BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
+ "call ext4_journal_dirty_met adata");
+ err = ext4_journal_dirty_metadata(handle,
+ EXT4_SB(sb)->s_sbh);
+ }
+ return err;
+}
+
+int ext4_update_incompat_feature(handle_t *handle,
+ struct super_block *sb, __u32 incompat)
+{
+ int err = 0;
+ if (!EXT4_HAS_INCOMPAT_FEATURE(sb, incompat)) {
+ err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh);
+ if (err)
+ return err;
+ EXT4_SET_INCOMPAT_FEATURE(sb, incompat);
+ sb->s_dirt = 1;
+ handle->h_sync = 1;
+ BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
+ "call ext4_journal_dirty_met adata");
+ err = ext4_journal_dirty_metadata(handle,
+ EXT4_SB(sb)->s_sbh);
+ }
+ return err;
+}
+
/*
* Open the external journal device
*/
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