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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-10 13:56:13 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-10 13:56:13 -0700 |
commit | 1b21f458ddbc8fb6fceeb68158e9e04b2571dabd (patch) | |
tree | 6ad7a02eba52a17e7a5d2e5de07b2918705c97bb /fs/gfs2/super.c | |
parent | 01370f0603f8435d415a19f7e62d1bab826c3589 (diff) | |
parent | 3ebf44902f77537b5784eb5059c2b78d8b5a920a (diff) | |
download | linux-stable-1b21f458ddbc8fb6fceeb68158e9e04b2571dabd.tar.gz linux-stable-1b21f458ddbc8fb6fceeb68158e9e04b2571dabd.tar.bz2 linux-stable-1b21f458ddbc8fb6fceeb68158e9e04b2571dabd.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (57 commits)
[GFS2] Accept old format NFS filehandles
[GFS2] Small fixes to logging code
[DLM] dump more lock values
[GFS2] Remove i_mode passing from NFS File Handle
[GFS2] Obtaining no_formal_ino from directory entry
[GFS2] git-gfs2-nmw-build-fix
[GFS2] System won't suspend with GFS2 file system mounted
[GFS2] remounting w/o acl option leaves acls enabled
[GFS2] inode size inconsistency
[DLM] Telnet to port 21064 can stop all lockspaces
[GFS2] Fix gfs2_block_truncate_page err return
[GFS2] Addendum to the journaled file/unmount patch
[GFS2] Simplify multiple glock aquisition
[GFS2] assertion failure after writing to journaled file, umount
[GFS2] Use zero_user_page() in stuffed_readpage()
[GFS2] Remove bogus '\0' in rgrp.c
[GFS2] Journaled file write/unstuff bug
[DLM] don't require FS flag on all nodes
[GFS2] Fix deallocation issues
[GFS2] return conflicts for GETLK
...
Diffstat (limited to 'fs/gfs2/super.c')
-rw-r--r-- | fs/gfs2/super.c | 79 |
1 files changed, 59 insertions, 20 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 4fdda974dc83..f916b9740c75 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -95,8 +95,8 @@ int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent) { unsigned int x; - if (sb->sb_header.mh_magic != GFS2_MAGIC || - sb->sb_header.mh_type != GFS2_METATYPE_SB) { + if (sb->sb_magic != GFS2_MAGIC || + sb->sb_type != GFS2_METATYPE_SB) { if (!silent) printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n"); return -EINVAL; @@ -174,10 +174,31 @@ static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error) return 0; } +static void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf) +{ + const struct gfs2_sb *str = buf; + + sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic); + sb->sb_type = be32_to_cpu(str->sb_header.mh_type); + sb->sb_format = be32_to_cpu(str->sb_header.mh_format); + sb->sb_fs_format = be32_to_cpu(str->sb_fs_format); + sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format); + sb->sb_bsize = be32_to_cpu(str->sb_bsize); + sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift); + sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr); + sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino); + sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr); + sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino); + + memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN); + memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN); +} + /** * gfs2_read_super - Read the gfs2 super block from disk - * @sb: The VFS super block + * @sdp: The GFS2 super block * @sector: The location of the super block + * @error: The error code to return * * This uses the bio functions to read the super block from disk * because we want to be 100% sure that we never read cached data. @@ -189,17 +210,19 @@ static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error) * the master directory (contains pointers to journals etc) and the * root directory. * - * Returns: A page containing the sb or NULL + * Returns: 0 on success or error */ -struct page *gfs2_read_super(struct super_block *sb, sector_t sector) +int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector) { + struct super_block *sb = sdp->sd_vfs; + struct gfs2_sb *p; struct page *page; struct bio *bio; page = alloc_page(GFP_KERNEL); if (unlikely(!page)) - return NULL; + return -ENOBUFS; ClearPageUptodate(page); ClearPageDirty(page); @@ -208,7 +231,7 @@ struct page *gfs2_read_super(struct super_block *sb, sector_t sector) bio = bio_alloc(GFP_KERNEL, 1); if (unlikely(!bio)) { __free_page(page); - return NULL; + return -ENOBUFS; } bio->bi_sector = sector * (sb->s_blocksize >> 9); @@ -222,9 +245,13 @@ struct page *gfs2_read_super(struct super_block *sb, sector_t sector) bio_put(bio); if (!PageUptodate(page)) { __free_page(page); - return NULL; + return -EIO; } - return page; + p = kmap(page); + gfs2_sb_in(&sdp->sd_sb, p); + kunmap(page); + __free_page(page); + return 0; } /** @@ -241,19 +268,13 @@ int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent) u32 tmp_blocks; unsigned int x; int error; - struct page *page; - char *sb; - page = gfs2_read_super(sdp->sd_vfs, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); - if (!page) { + error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); + if (error) { if (!silent) fs_err(sdp, "can't read superblock\n"); - return -EIO; + return error; } - sb = kmap(page); - gfs2_sb_in(&sdp->sd_sb, sb); - kunmap(page); - __free_page(page); error = gfs2_check_sb(sdp, &sdp->sd_sb, silent); if (error) @@ -360,7 +381,7 @@ int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh) name.len = sprintf(buf, "journal%u", sdp->sd_journals); name.hash = gfs2_disk_hash(name.name, name.len); - error = gfs2_dir_search(sdp->sd_jindex, &name, NULL, NULL); + error = gfs2_dir_check(sdp->sd_jindex, &name, NULL); if (error == -ENOENT) { error = 0; break; @@ -593,6 +614,24 @@ int gfs2_make_fs_ro(struct gfs2_sbd *sdp) return error; } +static void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf) +{ + const struct gfs2_statfs_change *str = buf; + + sc->sc_total = be64_to_cpu(str->sc_total); + sc->sc_free = be64_to_cpu(str->sc_free); + sc->sc_dinodes = be64_to_cpu(str->sc_dinodes); +} + +static void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf) +{ + struct gfs2_statfs_change *str = buf; + + str->sc_total = cpu_to_be64(sc->sc_total); + str->sc_free = cpu_to_be64(sc->sc_free); + str->sc_dinodes = cpu_to_be64(sc->sc_dinodes); +} + int gfs2_statfs_init(struct gfs2_sbd *sdp) { struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); @@ -772,7 +811,7 @@ static int statfs_slow_fill(struct gfs2_rgrpd *rgd, struct gfs2_statfs_change_host *sc) { gfs2_rgrp_verify(rgd); - sc->sc_total += rgd->rd_ri.ri_data; + sc->sc_total += rgd->rd_data; sc->sc_free += rgd->rd_rg.rg_free; sc->sc_dinodes += rgd->rd_rg.rg_dinodes; return 0; |