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| author | Steven Whitehouse <swhiteho@redhat.com> | 2006-08-18 15:51:09 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-08-18 15:51:09 -0400 |
| commit | 15d00c0b91ca776b51b5ab04f79ab35b06670d30 (patch) | |
| tree | a970b4f59086ecbf7d20ec9b2201cf26b8446019 /fs | |
| parent | fcc8abc8d4fcdbddc383091449f3696b411aa8fb (diff) | |
| download | kernel_samsung_smdk4412-15d00c0b91ca776b51b5ab04f79ab35b06670d30.zip kernel_samsung_smdk4412-15d00c0b91ca776b51b5ab04f79ab35b06670d30.tar.gz kernel_samsung_smdk4412-15d00c0b91ca776b51b5ab04f79ab35b06670d30.tar.bz2 | |
[GFS2] Fix leak of gfs2_bufdata
This fixes a memory leak of struct gfs2_bufdata and also some
problems in the ordered write handling code. It needs a bit
more testing, but I believe that the reference counting of
ordered write buffers should now be correct.
This is aimed at fixing Red Hat bugzilla: #201028 and #201082
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/lops.c | 6 | ||||
| -rw-r--r-- | fs/gfs2/meta_io.c | 1 | ||||
| -rw-r--r-- | fs/gfs2/ops_address.c | 8 | ||||
| -rw-r--r-- | fs/gfs2/ops_super.c | 2 |
4 files changed, 6 insertions, 11 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index af03bf3..04bceb7 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -464,7 +464,7 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) struct gfs2_inode *ip = GFS2_I(mapping->host); tr->tr_touched = 1; - if (!list_empty(&bd->bd_list_tr) && + if (list_empty(&bd->bd_list_tr) && (ip->i_di.di_flags & GFS2_DIF_JDATA)) { tr->tr_num_buf++; list_add(&bd->bd_list_tr, &tr->tr_list_buf); @@ -473,7 +473,7 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) } gfs2_trans_add_gl(bd->bd_gl); gfs2_log_lock(sdp); - if (!list_empty(&le->le_list)) { + if (list_empty(&le->le_list)) { if (ip->i_di.di_flags & GFS2_DIF_JDATA) sdp->sd_log_num_jdata++; sdp->sd_log_num_databuf++; @@ -640,10 +640,10 @@ static void databuf_lo_before_commit(struct gfs2_sbd *sdp) bd_le.le_list); list_del(&bd1->bd_le.le_list); sdp->sd_log_num_databuf--; - bh = bd1->bd_bh; if (bh) { bh->b_private = NULL; + get_bh(bh); gfs2_log_unlock(sdp); wait_on_buffer(bh); brelse(bh); diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 42dfd32..502864b 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -464,7 +464,6 @@ void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh, lops_init_le(&bd->bd_le, &gfs2_buf_lops); } else { lops_init_le(&bd->bd_le, &gfs2_databuf_lops); - get_bh(bh); } bh->b_private = bd; diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c index 45afd05..4c59cb1 100644 --- a/fs/gfs2/ops_address.c +++ b/fs/gfs2/ops_address.c @@ -581,10 +581,8 @@ static void discard_buffer(struct gfs2_sbd *sdp, struct buffer_head *bh) if (bd) { bd->bd_bh = NULL; bh->b_private = NULL; - gfs2_log_unlock(sdp); - brelse(bh); - } else - gfs2_log_unlock(sdp); + } + gfs2_log_unlock(sdp); lock_buffer(bh); clear_buffer_dirty(bh); @@ -598,7 +596,7 @@ static void discard_buffer(struct gfs2_sbd *sdp, struct buffer_head *bh) static void gfs2_invalidatepage(struct page *page, unsigned long offset) { - struct gfs2_sbd *sdp = page->mapping->host->i_sb->s_fs_info; + struct gfs2_sbd *sdp = GFS2_SB(page->mapping->host); struct buffer_head *head, *bh, *next; unsigned int curr_off = 0; diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c index 730c722..2e392c99 100644 --- a/fs/gfs2/ops_super.c +++ b/fs/gfs2/ops_super.c @@ -216,8 +216,6 @@ static int gfs2_statfs(struct dentry *dentry, struct kstatfs *buf) if (error) return error; - memset(buf, 0, sizeof(struct kstatfs)); - buf->f_type = GFS2_MAGIC; buf->f_bsize = sdp->sd_sb.sb_bsize; buf->f_blocks = sc.sc_total; |