diff options
Diffstat (limited to 'fs/logfs/super.c')
| -rw-r--r-- | fs/logfs/super.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/logfs/super.c b/fs/logfs/super.c index d128a2c1c8d1..94d80f7ee7c2 100644 --- a/fs/logfs/super.c +++ b/fs/logfs/super.c @@ -317,6 +317,7 @@ static int logfs_make_writeable(struct super_block *sb) static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt) { + struct logfs_super *super = logfs_super(sb); struct inode *rootdir; int err; @@ -329,15 +330,22 @@ static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt) if (!sb->s_root) goto fail; + super->s_erase_page = alloc_pages(GFP_KERNEL, 0); + if (!super->s_erase_page) + goto fail2; + memset(page_address(super->s_erase_page), 0xFF, PAGE_SIZE); + /* FIXME: check for read-only mounts */ err = logfs_make_writeable(sb); if (err) - goto fail2; + goto fail3; log_super("LogFS: Finished mounting\n"); simple_set_mnt(mnt, sb); return 0; +fail3: + __free_page(super->s_erase_page); fail2: iput(rootdir); fail: @@ -498,6 +506,8 @@ static void logfs_kill_sb(struct super_block *sb) logfs_cleanup_journal(sb); logfs_cleanup_areas(sb); logfs_cleanup_rw(sb); + if (super->s_erase_page) + __free_page(super->s_erase_page); super->s_devops->put_device(sb); mempool_destroy(super->s_btree_pool); mempool_destroy(super->s_alias_pool); |