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Diffstat (limited to 'fs/gfs2/super.c')
-rw-r--r--fs/gfs2/super.c152
1 files changed, 139 insertions, 13 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index a4e23d68a39..ed540e7018b 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -23,6 +23,7 @@
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/writeback.h>
+#include <linux/backing-dev.h>
#include "gfs2.h"
#include "incore.h"
@@ -700,11 +701,47 @@ void gfs2_unfreeze_fs(struct gfs2_sbd *sdp)
mutex_unlock(&sdp->sd_freeze_lock);
}
+void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
+{
+ struct gfs2_dinode *str = buf;
+
+ str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
+ str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI);
+ str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI);
+ str->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
+ str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
+ str->di_mode = cpu_to_be32(ip->i_inode.i_mode);
+ str->di_uid = cpu_to_be32(ip->i_inode.i_uid);
+ str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
+ str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
+ str->di_size = cpu_to_be64(i_size_read(&ip->i_inode));
+ str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
+ str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
+ str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
+ str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec);
+
+ str->di_goal_meta = cpu_to_be64(ip->i_goal);
+ str->di_goal_data = cpu_to_be64(ip->i_goal);
+ str->di_generation = cpu_to_be64(ip->i_generation);
+
+ str->di_flags = cpu_to_be32(ip->i_diskflags);
+ str->di_height = cpu_to_be16(ip->i_height);
+ str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
+ !(ip->i_diskflags & GFS2_DIF_EXHASH) ?
+ GFS2_FORMAT_DE : 0);
+ str->di_depth = cpu_to_be16(ip->i_depth);
+ str->di_entries = cpu_to_be32(ip->i_entries);
+
+ str->di_eattr = cpu_to_be64(ip->i_eattr);
+ str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec);
+ str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec);
+ str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec);
+}
/**
* gfs2_write_inode - Make sure the inode is stable on the disk
* @inode: The inode
- * @sync: synchronous write flag
+ * @wbc: The writeback control structure
*
* Returns: errno
*/
@@ -713,15 +750,17 @@ static int gfs2_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
+ struct address_space *metamapping = gfs2_glock2aspace(ip->i_gl);
+ struct backing_dev_info *bdi = metamapping->backing_dev_info;
struct gfs2_holder gh;
struct buffer_head *bh;
struct timespec atime;
struct gfs2_dinode *di;
- int ret = 0;
+ int ret = -EAGAIN;
- /* Check this is a "normal" inode, etc */
+ /* Skip timestamp update, if this is from a memalloc */
if (current->flags & PF_MEMALLOC)
- return 0;
+ goto do_flush;
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
if (ret)
goto do_flush;
@@ -745,6 +784,13 @@ do_unlock:
do_flush:
if (wbc->sync_mode == WB_SYNC_ALL)
gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
+ filemap_fdatawrite(metamapping);
+ if (bdi->dirty_exceeded)
+ gfs2_ail1_flush(sdp, wbc);
+ if (!ret && (wbc->sync_mode == WB_SYNC_ALL))
+ ret = filemap_fdatawait(metamapping);
+ if (ret)
+ mark_inode_dirty_sync(inode);
return ret;
}
@@ -874,8 +920,9 @@ restart:
static int gfs2_sync_fs(struct super_block *sb, int wait)
{
- if (wait && sb->s_fs_info)
- gfs2_log_flush(sb->s_fs_info, NULL);
+ struct gfs2_sbd *sdp = sb->s_fs_info;
+ if (wait && sdp)
+ gfs2_log_flush(sdp, NULL);
return 0;
}
@@ -1308,6 +1355,78 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
return 0;
}
+static void gfs2_final_release_pages(struct gfs2_inode *ip)
+{
+ struct inode *inode = &ip->i_inode;
+ struct gfs2_glock *gl = ip->i_gl;
+
+ truncate_inode_pages(gfs2_glock2aspace(ip->i_gl), 0);
+ truncate_inode_pages(&inode->i_data, 0);
+
+ if (atomic_read(&gl->gl_revokes) == 0) {
+ clear_bit(GLF_LFLUSH, &gl->gl_flags);
+ clear_bit(GLF_DIRTY, &gl->gl_flags);
+ }
+}
+
+static int gfs2_dinode_dealloc(struct gfs2_inode *ip)
+{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+ struct gfs2_alloc *al;
+ struct gfs2_rgrpd *rgd;
+ int error;
+
+ if (gfs2_get_inode_blocks(&ip->i_inode) != 1) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
+
+ al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
+
+ error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ if (error)
+ goto out;
+
+ error = gfs2_rindex_hold(sdp, &al->al_ri_gh);
+ if (error)
+ goto out_qs;
+
+ rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr);
+ if (!rgd) {
+ gfs2_consist_inode(ip);
+ error = -EIO;
+ goto out_rindex_relse;
+ }
+
+ error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0,
+ &al->al_rgd_gh);
+ if (error)
+ goto out_rindex_relse;
+
+ error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA,
+ sdp->sd_jdesc->jd_blocks);
+ if (error)
+ goto out_rg_gunlock;
+
+ gfs2_free_di(rgd, ip);
+
+ gfs2_final_release_pages(ip);
+
+ gfs2_trans_end(sdp);
+
+out_rg_gunlock:
+ gfs2_glock_dq_uninit(&al->al_rgd_gh);
+out_rindex_relse:
+ gfs2_glock_dq_uninit(&al->al_ri_gh);
+out_qs:
+ gfs2_quota_unhold(ip);
+out:
+ gfs2_alloc_put(ip);
+ return error;
+}
+
/*
* We have to (at the moment) hold the inodes main lock to cover
* the gap between unlocking the shared lock on the iopen lock and
@@ -1318,15 +1437,17 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
static void gfs2_evict_inode(struct inode *inode)
{
- struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
+ struct super_block *sb = inode->i_sb;
+ struct gfs2_sbd *sdp = sb->s_fs_info;
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int error;
- if (inode->i_nlink)
+ if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
goto out;
- error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+ /* Must not read inode block until block type has been verified */
+ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_SKIP, &gh);
if (unlikely(error)) {
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
goto out;
@@ -1336,6 +1457,12 @@ static void gfs2_evict_inode(struct inode *inode)
if (error)
goto out_truncate;
+ if (test_bit(GIF_INVALID, &ip->i_flags)) {
+ error = gfs2_inode_refresh(ip);
+ if (error)
+ goto out_truncate;
+ }
+
ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
gfs2_glock_dq_wait(&ip->i_iopen_gh);
gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
@@ -1363,15 +1490,13 @@ static void gfs2_evict_inode(struct inode *inode)
}
error = gfs2_dinode_dealloc(ip);
- if (error)
- goto out_unlock;
+ goto out_unlock;
out_truncate:
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
if (error)
goto out_unlock;
- /* Needs to be done before glock release & also in a transaction */
- truncate_inode_pages(&inode->i_data, 0);
+ gfs2_final_release_pages(ip);
gfs2_trans_end(sdp);
out_unlock:
@@ -1386,6 +1511,7 @@ out:
end_writeback(inode);
ip->i_gl->gl_object = NULL;
+ gfs2_glock_add_to_lru(ip->i_gl);
gfs2_glock_put(ip->i_gl);
ip->i_gl = NULL;
if (ip->i_iopen_gh.gh_gl) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 03:17:56 +0000