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author | Steven Whitehouse <swhiteho@redhat.com> | 2008-11-26 12:49:26 +0000 |
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committer | Steven Whitehouse <swhiteho@redhat.com> | 2009-01-05 07:39:11 +0000 |
commit | b52896813c2f16bcc5c5b67bb3c3f75bc084439b (patch) | |
tree | 2da41c8c4e5ef5ab74e8d1e5bc65183e5b9d4a14 /fs/gfs2/ops_fstype.c | |
parent | fdd1062ebaa422c5684f97fa91da06f91167d76b (diff) | |
download | kernel_samsung_crespo-b52896813c2f16bcc5c5b67bb3c3f75bc084439b.zip kernel_samsung_crespo-b52896813c2f16bcc5c5b67bb3c3f75bc084439b.tar.gz kernel_samsung_crespo-b52896813c2f16bcc5c5b67bb3c3f75bc084439b.tar.bz2 |
GFS2: Fix bug in gfs2_lock_fs_check_clean()
gfs2_lock_fs_check_clean() should not be calling gfs2_jindex_hold()
since it doesn't work like rindex hold, despite the comment. That
allows gfs2_jindex_hold() to be moved into ops_fstype.c where it
can be made static.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_fstype.c')
-rw-r--r-- | fs/gfs2/ops_fstype.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index fc300ea..4cae60f 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -33,6 +33,7 @@ #include "util.h" #include "log.h" #include "quota.h" +#include "dir.h" #define DO 0 #define UNDO 1 @@ -638,6 +639,72 @@ static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp) sdp->sd_lockstruct.ls_lockspace); } +/** + * gfs2_jindex_hold - Grab a lock on the jindex + * @sdp: The GFS2 superblock + * @ji_gh: the holder for the jindex glock + * + * Returns: errno + */ + +static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh) +{ + struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex); + struct qstr name; + char buf[20]; + struct gfs2_jdesc *jd; + int error; + + name.name = buf; + + mutex_lock(&sdp->sd_jindex_mutex); + + for (;;) { + error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh); + if (error) + break; + + name.len = sprintf(buf, "journal%u", sdp->sd_journals); + name.hash = gfs2_disk_hash(name.name, name.len); + + error = gfs2_dir_check(sdp->sd_jindex, &name, NULL); + if (error == -ENOENT) { + error = 0; + break; + } + + gfs2_glock_dq_uninit(ji_gh); + + if (error) + break; + + error = -ENOMEM; + jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL); + if (!jd) + break; + + INIT_LIST_HEAD(&jd->extent_list); + jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1); + if (!jd->jd_inode || IS_ERR(jd->jd_inode)) { + if (!jd->jd_inode) + error = -ENOENT; + else + error = PTR_ERR(jd->jd_inode); + kfree(jd); + break; + } + + spin_lock(&sdp->sd_jindex_spin); + jd->jd_jid = sdp->sd_journals++; + list_add_tail(&jd->jd_list, &sdp->sd_jindex_list); + spin_unlock(&sdp->sd_jindex_spin); + } + + mutex_unlock(&sdp->sd_jindex_mutex); + + return error; +} + static int init_journal(struct gfs2_sbd *sdp, int undo) { struct inode *master = sdp->sd_master_dir->d_inode; |