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authorDave Kleikamp <shaggy@austin.ibm.com>2005-10-03 15:32:11 -0500
committerDave Kleikamp <shaggy@austin.ibm.com>2005-10-03 15:32:11 -0500
commitac17b8b57013a3e38d1958f66a218f15659e5752 (patch)
treef7a28ccd5bd5496f6a2284f3d77a5019dc75c820 /fs/jfs/jfs_metapage.c
parentddea7be0ec8d1374f0b483a81566ed56ec9f3905 (diff)
downloadop-kernel-dev-ac17b8b57013a3e38d1958f66a218f15659e5752.zip
op-kernel-dev-ac17b8b57013a3e38d1958f66a218f15659e5752.tar.gz
JFS: make special inodes play nicely with page balancing
This patch fixes up a few problems with jfs's reserved inodes. 1. There is no need for the jfs code setting the I_DIRTY bits in i_state. I am ashamed that the code ever did this, and surprised it hasn't been noticed until now. 2. Make sure special inodes are on an inode hash list. If the inodes are unhashed, __mark_inode_dirty will fail to put the inode on the superblock's dirty list, and the data will not be flushed under memory pressure. 3. Force writing journal data to disk when metapage_writepage is unable to write a metadata page due to pending journal I/O. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'fs/jfs/jfs_metapage.c')
-rw-r--r--fs/jfs/jfs_metapage.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 13d7e3f..c81c643 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -395,6 +395,12 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
if (mp->nohomeok && !test_bit(META_forcewrite, &mp->flag)) {
redirty = 1;
+ /*
+ * Make sure this page isn't blocked indefinitely.
+ * If the journal isn't undergoing I/O, push it
+ */
+ if (mp->log && !(mp->log->cflag & logGC_PAGEOUT))
+ jfs_flush_journal(mp->log, 0);
continue;
}
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