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author | Steven Whitehouse <swhiteho@redhat.com> | 2006-07-27 13:53:53 -0400 |
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committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-07-27 13:53:53 -0400 |
commit | f45b7ddd2bae1dc98e35c3611b55cba6d2a8da9e (patch) | |
tree | b2c498fc65855cb0f7ec17b9e2a42200aae633af /fs/gfs2/glops.c | |
parent | ae4a382004fc6cf229c51deaf69910410d313e0b (diff) | |
download | kernel_samsung_smdk4412-f45b7ddd2bae1dc98e35c3611b55cba6d2a8da9e.zip kernel_samsung_smdk4412-f45b7ddd2bae1dc98e35c3611b55cba6d2a8da9e.tar.gz kernel_samsung_smdk4412-f45b7ddd2bae1dc98e35c3611b55cba6d2a8da9e.tar.bz2 |
[GFS2] Use a bio to read the superblock
This means that we don't need to create a special inode just to contain
a struct address_space in order to read a single disk block. Instead
we read the disk block directly. Its slightly faster, and uses slightly
less memory, but the real reason for doing this is that it removes a
special case from the glock code.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/glops.c')
-rw-r--r-- | fs/gfs2/glops.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 3f909a8..75d4c50 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -157,18 +157,6 @@ static void meta_go_inval(struct gfs2_glock *gl, int flags) } /** - * meta_go_demote_ok - Check to see if it's ok to unlock a glock - * @gl: the glock - * - * Returns: 1 if we have no cached data; ok to demote meta glock - */ - -static int meta_go_demote_ok(struct gfs2_glock *gl) -{ - return !gl->gl_aspace->i_mapping->nrpages; -} - -/** * inode_go_xmote_th - promote/demote a glock * @gl: the glock * @state: the requested state @@ -338,11 +326,12 @@ static void inode_go_unlock(struct gfs2_holder *gh) struct gfs2_glock *gl = gh->gh_gl; struct gfs2_inode *ip = gl->gl_object; - if (ip && test_bit(GLF_DIRTY, &gl->gl_flags)) - gfs2_inode_attr_in(ip); + if (ip) { + if (test_bit(GLF_DIRTY, &gl->gl_flags)) + gfs2_inode_attr_in(ip); - if (ip) gfs2_meta_cache_flush(ip); + } } /** @@ -507,9 +496,6 @@ static int quota_go_demote_ok(struct gfs2_glock *gl) struct gfs2_glock_operations gfs2_meta_glops = { .go_xmote_th = gfs2_glock_xmote_th, .go_drop_th = gfs2_glock_drop_th, - .go_sync = meta_go_sync, - .go_inval = meta_go_inval, - .go_demote_ok = meta_go_demote_ok, .go_type = LM_TYPE_META }; |