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GFS2: Refactor gfs2_remove_from_journal 

This patch makes two simple changes to function gfs2_remove_from_journal.
First, it removes the parameter that specifies the transaction.
Since it's always passed in as current->journal_info, we might as well
set that in the function rather than passing it in. Second, it changes
the meta parameter to use an enum to make the code more clear.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Bob Peterson 2016-05-02 11:53:35 -05:00
parent 8381e60227
commit 68cd4ce2ca
3 changed files with 11 additions and 6 deletions
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2
fs/gfs2/aops.c
View File

@ -977,7 +977,7 @@ static void gfs2_discard(struct gfs2_sbd *sdp, struct buffer_head *bh)
if (!list_empty(&bd->bd_list) && !buffer_pinned(bh))
list_del_init(&bd->bd_list);
else
gfs2_remove_from_journal(bh, current->journal_info, 0);
gfs2_remove_from_journal(bh, REMOVE_JDATA);
}
bh->b_bdev = NULL;
clear_buffer_mapped(bh);

7
fs/gfs2/meta_io.c
View File

@ -325,18 +325,19 @@ int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh)
return 0;
}
void gfs2_remove_from_journal(struct buffer_head *bh, struct gfs2_trans *tr, int meta)
void gfs2_remove_from_journal(struct buffer_head *bh, int meta)
{
struct address_space *mapping = bh->b_page->mapping;
struct gfs2_sbd *sdp = gfs2_mapping2sbd(mapping);
struct gfs2_bufdata *bd = bh->b_private;
struct gfs2_trans *tr = current->journal_info;
int was_pinned = 0;
if (test_clear_buffer_pinned(bh)) {
trace_gfs2_pin(bd, 0);
atomic_dec(&sdp->sd_log_pinned);
list_del_init(&bd->bd_list);
if (meta)
if (meta == REMOVE_META)
tr->tr_num_buf_rm++;
else
tr->tr_num_databuf_rm++;
@ -376,7 +377,7 @@ void gfs2_meta_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen)
if (bh) {
lock_buffer(bh);
gfs2_log_lock(sdp);
gfs2_remove_from_journal(bh, current->journal_info, 1);
gfs2_remove_from_journal(bh, REMOVE_META);
gfs2_log_unlock(sdp);
unlock_buffer(bh);
brelse(bh);

8
fs/gfs2/meta_io.h
View File

@ -57,8 +57,12 @@ extern int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
extern int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh);
extern struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno,
int create);
extern void gfs2_remove_from_journal(struct buffer_head *bh,
struct gfs2_trans *tr, int meta);
enum {
REMOVE_JDATA = 0,
REMOVE_META = 1,
};
extern void gfs2_remove_from_journal(struct buffer_head *bh, int meta);
extern void gfs2_meta_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen);
extern int gfs2_meta_indirect_buffer(struct gfs2_inode *ip, int height, u64 num,
struct buffer_head **bhp);