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authorJ. Bruce Fields <bfields@redhat.com>2012-10-09 18:35:22 -0400
committerJ. Bruce Fields <bfields@redhat.com>2012-10-09 18:35:22 -0400
commitf474af7051212b4efc8267583fad9c4ebf33ccff (patch)
tree1aa46ebc8065a341f247c2a2d9af2f624ad1d4f8 /fs/jbd2/journal.c
parent0d22f68f02c10d5d10ec5712917e5828b001a822 (diff)
parente3dd9a52cb5552c46c2a4ca7ccdfb4dab5c72457 (diff)
downloadtalos-obmc-linux-f474af7051212b4efc8267583fad9c4ebf33ccff.tar.gz
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nfs: disintegrate UAPI for nfs
This is to complete part of the Userspace API (UAPI) disintegration for which the preparatory patches were pulled recently. After these patches, userspace headers will be segregated into: include/uapi/linux/.../foo.h for the userspace interface stuff, and: include/linux/.../foo.h for the strictly kernel internal stuff. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/jbd2/journal.c')
-rw-r--r--fs/jbd2/journal.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 8625da27eccf..484b8d1c6cb6 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1354,6 +1354,11 @@ static void jbd2_mark_journal_empty(journal_t *journal)
BUG_ON(!mutex_is_locked(&journal->j_checkpoint_mutex));
read_lock(&journal->j_state_lock);
+ /* Is it already empty? */
+ if (sb->s_start == 0) {
+ read_unlock(&journal->j_state_lock);
+ return;
+ }
jbd_debug(1, "JBD2: Marking journal as empty (seq %d)\n",
journal->j_tail_sequence);
@@ -1377,7 +1382,7 @@ static void jbd2_mark_journal_empty(journal_t *journal)
* Update a journal's errno. Write updated superblock to disk waiting for IO
* to complete.
*/
-static void jbd2_journal_update_sb_errno(journal_t *journal)
+void jbd2_journal_update_sb_errno(journal_t *journal)
{
journal_superblock_t *sb = journal->j_superblock;
@@ -1390,6 +1395,7 @@ static void jbd2_journal_update_sb_errno(journal_t *journal)
jbd2_write_superblock(journal, WRITE_SYNC);
}
+EXPORT_SYMBOL(jbd2_journal_update_sb_errno);
/*
* Read the superblock for a given journal, performing initial
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