From: Ryusuke Konishi Date: Sun, 15 Nov 2009 11:13:21 +0000 (+0900) Subject: nilfs2: flush palloc cache before manipulating data pages of GC dat X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c3ea56c80081b826df4a0ac797432179cf5b7cd2;p=linux-beck.git nilfs2: flush palloc cache before manipulating data pages of GC dat Data pages in gcdat metadata file (i.e. the secondary DAT for GC), are cleared or even moved back to the normal DAT when a shot of garbage collection was done. Buffer heads held by the palloc cache of gcdat must be cleared before these page cache manipulation. This adds nilfs_palloc_clear_cache() to ensure this. Signed-off-by: Ryusuke Konishi --- diff --git a/fs/nilfs2/gcdat.c b/fs/nilfs2/gcdat.c index 93383c5cee90..dd5f7e0a95f6 100644 --- a/fs/nilfs2/gcdat.c +++ b/fs/nilfs2/gcdat.c @@ -61,6 +61,8 @@ void nilfs_commit_gcdat_inode(struct the_nilfs *nilfs) nilfs_bmap_commit_gcdat(gii->i_bmap, dii->i_bmap); + nilfs_palloc_clear_cache(dat); + nilfs_palloc_clear_cache(gcdat); nilfs_clear_dirty_pages(mapping); nilfs_copy_back_pages(mapping, gmapping); /* note: mdt dirty flags should be cleared by segctor. */ @@ -79,6 +81,7 @@ void nilfs_clear_gcdat_inode(struct the_nilfs *nilfs) gcdat->i_state = I_CLEAR; gii->i_flags = 0; + nilfs_palloc_clear_cache(gcdat); truncate_inode_pages(gcdat->i_mapping, 0); truncate_inode_pages(&gii->i_btnode_cache, 0); }