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authorBob Peterson <rpeterso@redhat.com>2022-02-11 18:50:36 +0300
committerAndreas Gruenbacher <agruenba@redhat.com>2022-05-24 22:29:14 +0300
commitc360abbb9db298d0548b31e1a86a48ebb157d7cd (patch)
tree53c83fbd3c14c13a673154bebe9beb63f47e1243 /fs/gfs2
parent5fcff61eea9efd1f4b60e89d2d686b5feaea100f (diff)
downloadlinux-c360abbb9db298d0548b31e1a86a48ebb157d7cd.tar.xz
gfs2: Convert function bh_get to use iomap
Before this patch, function bh_get used block_map to figure out the block it needed to read in from the quota_change file. This patch changes it to use iomap directly to make it more efficient. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/quota.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 390f34ca3bc8..59d727a4ae2c 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -365,11 +365,12 @@ static void slot_put(struct gfs2_quota_data *qd)
static int bh_get(struct gfs2_quota_data *qd)
{
struct gfs2_sbd *sdp = qd->qd_gl->gl_name.ln_sbd;
- struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
+ struct inode *inode = sdp->sd_qc_inode;
+ struct gfs2_inode *ip = GFS2_I(inode);
unsigned int block, offset;
struct buffer_head *bh;
+ struct iomap iomap = { };
int error;
- struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
mutex_lock(&sdp->sd_quota_mutex);
@@ -381,11 +382,17 @@ static int bh_get(struct gfs2_quota_data *qd)
block = qd->qd_slot / sdp->sd_qc_per_block;
offset = qd->qd_slot % sdp->sd_qc_per_block;
- bh_map.b_size = BIT(ip->i_inode.i_blkbits);
- error = gfs2_block_map(&ip->i_inode, block, &bh_map, 0);
+ error = gfs2_iomap_get(inode,
+ (loff_t)block << inode->i_blkbits,
+ i_blocksize(inode), &iomap);
if (error)
goto fail;
- error = gfs2_meta_read(ip->i_gl, bh_map.b_blocknr, DIO_WAIT, 0, &bh);
+ error = -ENOENT;
+ if (iomap.type != IOMAP_MAPPED)
+ goto fail;
+
+ error = gfs2_meta_read(ip->i_gl, iomap.addr >> inode->i_blkbits,
+ DIO_WAIT, 0, &bh);
if (error)
goto fail;
error = -EIO;