diff options
Diffstat (limited to 'fs/nilfs2/sufile.c')
| -rw-r--r-- | fs/nilfs2/sufile.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c index cc714c72b138..4cf47e03a3ab 100644 --- a/fs/nilfs2/sufile.c +++ b/fs/nilfs2/sufile.c @@ -231,10 +231,11 @@ int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum) kaddr = kmap_atomic(su_bh->b_page, KM_USER0); su = nilfs_sufile_block_get_segment_usage( sufile, segnum, su_bh, kaddr); - if (!nilfs_segment_usage_clean(su)) { - printk(KERN_CRIT "%s: segment %llu must be clean\n", + if (unlikely(!nilfs_segment_usage_clean(su))) { + printk(KERN_WARNING "%s: segment %llu must be clean\n", __func__, (unsigned long long)segnum); - BUG(); + kunmap_atomic(kaddr, KM_USER0); + goto out_su_bh; } nilfs_segment_usage_set_dirty(su); kunmap_atomic(kaddr, KM_USER0); @@ -249,11 +250,10 @@ int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum) nilfs_mdt_mark_buffer_dirty(su_bh); nilfs_mdt_mark_dirty(sufile); + out_su_bh: brelse(su_bh); - out_header: brelse(header_bh); - out_sem: up_write(&NILFS_MDT(sufile)->mi_sem); return ret; @@ -317,7 +317,7 @@ int nilfs_sufile_freev(struct inode *sufile, __u64 *segnum, size_t nsegs) kaddr = kmap_atomic(su_bh[i]->b_page, KM_USER0); su = nilfs_sufile_block_get_segment_usage( sufile, segnum[i], su_bh[i], kaddr); - BUG_ON(nilfs_segment_usage_error(su)); + WARN_ON(nilfs_segment_usage_error(su)); nilfs_segment_usage_set_clean(su); kunmap_atomic(kaddr, KM_USER0); nilfs_mdt_mark_buffer_dirty(su_bh[i]); @@ -385,8 +385,8 @@ int nilfs_sufile_get_segment_usage(struct inode *sufile, __u64 segnum, int ret; /* segnum is 0 origin */ - BUG_ON(segnum >= nilfs_sufile_get_nsegments(sufile)); - + if (segnum >= nilfs_sufile_get_nsegments(sufile)) + return -EINVAL; down_write(&NILFS_MDT(sufile)->mi_sem); ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 1, &bh); if (ret < 0) @@ -515,6 +515,8 @@ int nilfs_sufile_get_ncleansegs(struct inode *sufile, unsigned long *nsegsp) * %-EIO - I/O error. * * %-ENOMEM - Insufficient amount of memory available. + * + * %-EINVAL - Invalid segment usage number. */ int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum) { @@ -524,8 +526,11 @@ int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum) void *kaddr; int ret; - BUG_ON(segnum >= nilfs_sufile_get_nsegments(sufile)); - + if (unlikely(segnum >= nilfs_sufile_get_nsegments(sufile))) { + printk(KERN_WARNING "%s: invalid segment number: %llu\n", + __func__, (unsigned long long)segnum); + return -EINVAL; + } down_write(&NILFS_MDT(sufile)->mi_sem); ret = nilfs_sufile_get_header_block(sufile, &header_bh); |
