mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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 <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2009-11-15 20:13:21 +09:00
parent 8908b2f70b
commit c3ea56c800
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/nilfs2/gcdat.c
View File

@ -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);
}