From 3d2b158262826e8b75bbbfb7b97010838dd92ac7 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 20 Feb 2012 17:53:00 -0500 Subject: ext4: ignore EXT4_INODE_JOURNAL_DATA flag with delalloc Ext4 does not support data journalling with delayed allocation enabled. We even do not allow to mount the file system with delayed allocation and data journalling enabled, however it can be set via FS_IOC_SETFLAGS so we can hit the inode with EXT4_INODE_JOURNAL_DATA set even on file system mounted with delayed allocation (default) and that's where problem arises. The easies way to reproduce this problem is with the following set of commands: mkfs.ext4 /dev/sdd mount /dev/sdd /mnt/test1 dd if=/dev/zero of=/mnt/test1/file bs=1M count=4 chattr +j /mnt/test1/file dd if=/dev/zero of=/mnt/test1/file bs=1M count=4 conv=notrunc chattr -j /mnt/test1/file Additionally it can be reproduced quite reliably with xfstests 272 and 269. In fact the above reproducer is a part of test 272. To fix this we should ignore the EXT4_INODE_JOURNAL_DATA inode flag if the file system is mounted with delayed allocation. This can be easily done by fixing ext4_should_*_data() functions do ignore data journal flag when delalloc is set (suggested by Ted). We also have to set the appropriate address space operations for the inode (again, ignoring data journal flag if delalloc enabled). Additionally this commit introduces ext4_inode_journal_mode() function because ext4_should_*_data() has already had a lot of common code and this change is putting it all into one function so it is easier to read. Successfully tested with xfstests in following configurations: delalloc + data=ordered delalloc + data=writeback data=journal nodelalloc + data=ordered nodelalloc + data=writeback nodelalloc + data=journal Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" Cc: stable@vger.kernel.org --- fs/ext4/inode.c | 36 ++++++++++++++++++++++-------------- 1 file changed, 22 insertions(+), 14 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index feaa82fe629..a58812ef5ea 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2482,13 +2482,14 @@ static int ext4_da_write_end(struct file *file, int write_mode = (int)(unsigned long)fsdata; if (write_mode == FALL_BACK_TO_NONDELALLOC) { - if (ext4_should_order_data(inode)) { + switch (ext4_inode_journal_mode(inode)) { + case EXT4_INODE_ORDERED_DATA_MODE: return ext4_ordered_write_end(file, mapping, pos, len, copied, page, fsdata); - } else if (ext4_should_writeback_data(inode)) { + case EXT4_INODE_WRITEBACK_DATA_MODE: return ext4_writeback_write_end(file, mapping, pos, len, copied, page, fsdata); - } else { + default: BUG(); } } @@ -3086,18 +3087,25 @@ static const struct address_space_operations ext4_da_aops = { void ext4_set_aops(struct inode *inode) { - if (ext4_should_order_data(inode) && - test_opt(inode->i_sb, DELALLOC)) - inode->i_mapping->a_ops = &ext4_da_aops; - else if (ext4_should_order_data(inode)) - inode->i_mapping->a_ops = &ext4_ordered_aops; - else if (ext4_should_writeback_data(inode) && - test_opt(inode->i_sb, DELALLOC)) - inode->i_mapping->a_ops = &ext4_da_aops; - else if (ext4_should_writeback_data(inode)) - inode->i_mapping->a_ops = &ext4_writeback_aops; - else + switch (ext4_inode_journal_mode(inode)) { + case EXT4_INODE_ORDERED_DATA_MODE: + if (test_opt(inode->i_sb, DELALLOC)) + inode->i_mapping->a_ops = &ext4_da_aops; + else + inode->i_mapping->a_ops = &ext4_ordered_aops; + break; + case EXT4_INODE_WRITEBACK_DATA_MODE: + if (test_opt(inode->i_sb, DELALLOC)) + inode->i_mapping->a_ops = &ext4_da_aops; + else + inode->i_mapping->a_ops = &ext4_writeback_aops; + break; + case EXT4_INODE_JOURNAL_DATA_MODE: inode->i_mapping->a_ops = &ext4_journalled_aops; + break; + default: + BUG(); + } } -- cgit v1.2.3-70-g09d2 From 266991b13890049ee1a6bb95b9817f06339ee3d7 Mon Sep 17 00:00:00 2001 From: Jeff Moyer Date: Mon, 20 Feb 2012 17:59:24 -0500 Subject: ext4: fix race between unwritten extent conversion and truncate The following comment in ext4_end_io_dio caught my attention: /* XXX: probably should move into the real I/O completion handler */ inode_dio_done(inode); The truncate code takes i_mutex, then calls inode_dio_wait. Because the ext4 code path above will end up dropping the mutex before it is reacquired by the worker thread that does the extent conversion, it seems to me that the truncate can happen out of order. Jan Kara mentioned that this might result in error messages in the system logs, but that should be the extent of the "damage." The fix is pretty straight-forward: don't call inode_dio_done until the extent conversion is complete. Reviewed-by: Jan Kara Signed-off-by: Jeff Moyer Signed-off-by: "Theodore Ts'o" Cc: stable@vger.kernel.org --- fs/ext4/ext4.h | 1 + fs/ext4/inode.c | 10 +++++----- fs/ext4/page-io.c | 2 ++ 3 files changed, 8 insertions(+), 5 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index c2314dcbe4f..4076746d721 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -184,6 +184,7 @@ struct mpage_da_data { #define EXT4_IO_END_UNWRITTEN 0x0001 #define EXT4_IO_END_ERROR 0x0002 #define EXT4_IO_END_QUEUED 0x0004 +#define EXT4_IO_END_DIRECT 0x0008 struct ext4_io_page { struct page *p_page; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a58812ef5ea..aafc626d64a 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2796,9 +2796,6 @@ out: /* queue the work to convert unwritten extents to written */ queue_work(wq, &io_end->work); - - /* XXX: probably should move into the real I/O completion handler */ - inode_dio_done(inode); } static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate) @@ -2922,9 +2919,12 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb, iocb->private = NULL; EXT4_I(inode)->cur_aio_dio = NULL; if (!is_sync_kiocb(iocb)) { - iocb->private = ext4_init_io_end(inode, GFP_NOFS); - if (!iocb->private) + ext4_io_end_t *io_end = + ext4_init_io_end(inode, GFP_NOFS); + if (!io_end) return -ENOMEM; + io_end->flag |= EXT4_IO_END_DIRECT; + iocb->private = io_end; /* * we save the io structure for current async * direct IO, so that later ext4_map_blocks() diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 47585189651..9e1b8eb1e7a 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -110,6 +110,8 @@ int ext4_end_io_nolock(ext4_io_end_t *io) if (io->iocb) aio_complete(io->iocb, io->result, 0); + if (io->flag & EXT4_IO_END_DIRECT) + inode_dio_done(inode); /* Wake up anyone waiting on unwritten extent conversion */ if (atomic_dec_and_test(&EXT4_I(inode)->i_aiodio_unwritten)) wake_up_all(ext4_ioend_wq(io->inode)); -- cgit v1.2.3-70-g09d2 From c64db50e76c4bf68c0a84379d7bd70daada531b4 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Fri, 2 Mar 2012 12:23:11 -0500 Subject: ext4: remove the I_VERSION mount flag and use the super_block flag instead There's no point to have two bits that are set in parallel; so use the MS_I_VERSION flag that is needed by the VFS anyway, and that way we free up a bit in sbi->s_mount_opts. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 1 - fs/ext4/inode.c | 2 +- fs/ext4/super.c | 3 +-- 3 files changed, 2 insertions(+), 4 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 4076746d721..df93dc19651 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -942,7 +942,6 @@ struct ext4_inode_info { #define EXT4_MOUNT_DIOREAD_NOLOCK 0x400000 /* Enable support for dio read nolocking */ #define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */ #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */ -#define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */ #define EXT4_MOUNT_MBLK_IO_SUBMIT 0x4000000 /* multi-block io submits */ #define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */ #define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */ diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index aafc626d64a..38dc5f3e9dd 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4322,7 +4322,7 @@ int ext4_mark_iloc_dirty(handle_t *handle, { int err = 0; - if (test_opt(inode->i_sb, I_VERSION)) + if (IS_I_VERSION(inode)) inode_inc_iversion(inode); /* the do_update_inode consumes one bh->b_count */ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 7dbad76f92e..6b27bc6eba4 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1125,7 +1125,7 @@ static int ext4_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",journal_async_commit"); else if (test_opt(sb, JOURNAL_CHECKSUM)) seq_puts(seq, ",journal_checksum"); - if (test_opt(sb, I_VERSION)) + if (sb->s_flags & MS_I_VERSION) seq_puts(seq, ",i_version"); if (!test_opt(sb, DELALLOC) && !(def_mount_opts & EXT4_DEFM_NODELALLOC)) @@ -1793,7 +1793,6 @@ set_qf_format: "Ignoring deprecated bh option"); break; case Opt_i_version: - set_opt(sb, I_VERSION); sb->s_flags |= MS_I_VERSION; break; case Opt_nodelalloc: -- cgit v1.2.3-70-g09d2 From 93ef8541d5c3ad1a73057ff358a49d0ee7146d6f Mon Sep 17 00:00:00 2001 From: Jeff Moyer Date: Mon, 5 Mar 2012 10:19:52 -0500 Subject: ext4: clean up the flags passed to __blockdev_direct_IO For extent-based files, you can perform DIO to holes, as mentioned in the comments in ext4_ext_direct_IO. However, that function passes DIO_SKIP_HOLES to __blockdev_direct_IO, which is *really* confusing to the uninitiated reader. The key, here, is that the get_block function passed in, ext4_get_block_write, completely ignores the create flag that is passed to it (the create flag is passed in from the direct I/O code, which uses the DIO_SKIP_HOLES flag to determine whether or not it should be cleared). This is a long-winded way of saying that the DIO_SKIP_HOLES flag is ultimately ignored. So let's remove it. Signed-off-by: Jeff Moyer Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 38dc5f3e9dd..5f8081c3803 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2941,7 +2941,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb, ext4_get_block_write, ext4_end_io_dio, NULL, - DIO_LOCKING | DIO_SKIP_HOLES); + DIO_LOCKING); if (iocb->private) EXT4_I(inode)->cur_aio_dio = NULL; /* -- cgit v1.2.3-70-g09d2 From ace36ad431c6820c2a8718cee85e5294d6e19747 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 19 Mar 2012 23:11:43 -0400 Subject: ext4: add no_printk argument validation, fix fallout Add argument validation to debug functions. Use ##__VA_ARGS__. Fix format and argument mismatches. Signed-off-by: Joe Perches Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 2 +- fs/ext4/ext4_extents.h | 4 ++-- fs/ext4/inode.c | 2 +- fs/ext4/xattr.c | 13 ++++++++----- 4 files changed, 12 insertions(+), 9 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 26ee54b2ce8..ded731ac8a3 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -53,7 +53,7 @@ printk(KERN_DEBUG f, ## a); \ } while (0) #else -#define ext4_debug(f, a...) do {} while (0) +#define ext4_debug(fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif #define EXT4_ERROR_INODE(inode, fmt, a...) \ diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h index a52db3a69a3..0f58b86e3a0 100644 --- a/fs/ext4/ext4_extents.h +++ b/fs/ext4/ext4_extents.h @@ -47,9 +47,9 @@ */ #define EXT_DEBUG__ #ifdef EXT_DEBUG -#define ext_debug(a...) printk(a) +#define ext_debug(fmt, ...) printk(fmt, ##__VA_ARGS__) #else -#define ext_debug(a...) +#define ext_debug(fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif /* diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5f8081c3803..028140213ae 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2764,7 +2764,7 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, goto out; ext_debug("ext4_end_io_dio(): io_end 0x%p " - "for inode %lu, iocb 0x%p, offset %llu, size %llu\n", + "for inode %lu, iocb 0x%p, offset %llu, size %zd\n", iocb->private, io_end->inode->i_ino, iocb, offset, size); diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 3369157df85..e88748e55c0 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -82,8 +82,8 @@ printk("\n"); \ } while (0) #else -# define ea_idebug(f...) -# define ea_bdebug(f...) +# define ea_idebug(inode, fmt, ...) no_printk(fmt, ##__VA_ARGS__) +# define ea_bdebug(bh, fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif static void ext4_xattr_cache_insert(struct buffer_head *); @@ -217,7 +217,8 @@ ext4_xattr_block_get(struct inode *inode, int name_index, const char *name, error = -ENODATA; if (!EXT4_I(inode)->i_file_acl) goto cleanup; - ea_idebug(inode, "reading block %u", EXT4_I(inode)->i_file_acl); + ea_idebug(inode, "reading block %llu", + (unsigned long long)EXT4_I(inode)->i_file_acl); bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl); if (!bh) goto cleanup; @@ -360,7 +361,8 @@ ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size) error = 0; if (!EXT4_I(inode)->i_file_acl) goto cleanup; - ea_idebug(inode, "reading block %u", EXT4_I(inode)->i_file_acl); + ea_idebug(inode, "reading block %llu", + (unsigned long long)EXT4_I(inode)->i_file_acl); bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl); error = -EIO; if (!bh) @@ -832,7 +834,8 @@ inserted: if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) BUG_ON(block > EXT4_MAX_BLOCK_FILE_PHYS); - ea_idebug(inode, "creating block %d", block); + ea_idebug(inode, "creating block %llu", + (unsigned long long)block); new_bh = sb_getblk(sb, block); if (!new_bh) { -- cgit v1.2.3-70-g09d2 From 1084f252e3490392575b80cbdfa1baf0842173d8 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 19 Mar 2012 23:13:43 -0400 Subject: ext4: remove trailing newlines from ext4_msg() and ext4_error() messages The functions ext4_msg() and ext4_error() already tack on a trailing newline, so remove the unnecessary extra newline. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ialloc.c | 6 +++--- fs/ext4/inode.c | 4 ++-- fs/ext4/mballoc.c | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index b2685992fb2..75e2eae74cd 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -1102,9 +1102,9 @@ int ext4_init_inode_table(struct super_block *sb, ext4_group_t group, sbi->s_inodes_per_block); if ((used_blks < 0) || (used_blks > sbi->s_itb_per_group)) { - ext4_error(sb, "Something is wrong with group %u\n" - "Used itable blocks: %d" - "itable unused count: %u\n", + ext4_error(sb, "Something is wrong with group %u: " + "used itable blocks: %d; " + "itable unused count: %u", group, used_blks, ext4_itable_unused_count(sb, gdp)); ret = 1; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 028140213ae..a11264ebd1f 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -272,7 +272,7 @@ void ext4_da_update_reserve_space(struct inode *inode, trace_ext4_da_update_reserve_space(inode, used, quota_claim); if (unlikely(used > ei->i_reserved_data_blocks)) { ext4_msg(inode->i_sb, KERN_NOTICE, "%s: ino %lu, used %d " - "with only %d reserved data blocks\n", + "with only %d reserved data blocks", __func__, inode->i_ino, used, ei->i_reserved_data_blocks); WARN_ON(1); @@ -1165,7 +1165,7 @@ static void ext4_da_release_space(struct inode *inode, int to_free) */ ext4_msg(inode->i_sb, KERN_NOTICE, "ext4_da_release_space: " "ino %lu, to_free %d with only %d reserved " - "data blocks\n", inode->i_ino, to_free, + "data blocks", inode->i_ino, to_free, ei->i_reserved_data_blocks); WARN_ON(1); to_free = ei->i_reserved_data_blocks; diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 8631e73f8f7..23ec6a879b3 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2762,7 +2762,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac, len = EXT4_C2B(sbi, ac->ac_b_ex.fe_len); if (!ext4_data_block_valid(sbi, block, len)) { ext4_error(sb, "Allocating blocks %llu-%llu which overlap " - "fs metadata\n", block, block+len); + "fs metadata", block, block+len); /* File system mounted not to panic on error * Fix the bitmap and repeat the block allocation * We leak some of the blocks here. -- cgit v1.2.3-70-g09d2 From 92b9781658dba287a1354ad74ed351f68c3ee740 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 19 Mar 2012 23:41:49 -0400 Subject: ext4: change some printk() calls to use ext4_msg() instead Signed-off-by: "Theodore Ts'o" --- fs/ext4/dir.c | 5 +++-- fs/ext4/extents.c | 19 ++++++++++--------- fs/ext4/ialloc.c | 19 ++++++++++--------- fs/ext4/inode.c | 23 +++++++++++++---------- fs/ext4/resize.c | 19 ++++++++++--------- fs/ext4/super.c | 4 ++-- 6 files changed, 48 insertions(+), 41 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index a4a0234cb5c..ad56866d729 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -425,8 +425,9 @@ static int call_filldir(struct file *filp, void *dirent, sb = inode->i_sb; if (!fname) { - printk(KERN_ERR "EXT4-fs: call_filldir: called with " - "null fname?!?\n"); + ext4_msg(sb, KERN_ERR, "%s:%d: inode #%lu: comm %s: " + "called with null fname?!?", __func__, __LINE__, + inode->i_ino, current->comm); return 0; } curr_pos = hash2pos(fname->hash, fname->minor_hash); diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 5c9c067abca..d075f34f9ba 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2728,17 +2728,17 @@ void ext4_ext_init(struct super_block *sb) if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EXTENTS)) { #if defined(AGGRESSIVE_TEST) || defined(CHECK_BINSEARCH) || defined(EXTENTS_STATS) - printk(KERN_INFO "EXT4-fs: file extents enabled"); + printk(KERN_INFO "EXT4-fs: file extents enabled" #ifdef AGGRESSIVE_TEST - printk(", aggressive tests"); + ", aggressive tests" #endif #ifdef CHECK_BINSEARCH - printk(", check binsearch"); + ", check binsearch" #endif #ifdef EXTENTS_STATS - printk(", stats"); + ", stats" #endif - printk("\n"); + "\n"); #endif #ifdef EXTENTS_STATS spin_lock_init(&EXT4_SB(sb)->s_ext_stats_lock); @@ -4412,10 +4412,11 @@ int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset, EXT4_GET_BLOCKS_IO_CONVERT_EXT); if (ret <= 0) { WARN_ON(ret <= 0); - printk(KERN_ERR "%s: ext4_ext_map_blocks " - "returned error inode#%lu, block=%u, " - "max_blocks=%u", __func__, - inode->i_ino, map.m_lblk, map.m_len); + ext4_msg(inode->i_sb, KERN_ERR, + "%s:%d: inode #%lu: block %u: len %u: " + "ext4_ext_map_blocks returned %d", + __func__, __LINE__, inode->i_ino, map.m_lblk, + map.m_len, ret); } ext4_mark_inode_dirty(handle, inode); ret2 = ext4_journal_stop(handle); diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 75e2eae74cd..409c2ee7750 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -204,19 +204,20 @@ void ext4_free_inode(handle_t *handle, struct inode *inode) struct ext4_sb_info *sbi; int fatal = 0, err, count, cleared; - if (atomic_read(&inode->i_count) > 1) { - printk(KERN_ERR "ext4_free_inode: inode has count=%d\n", - atomic_read(&inode->i_count)); + if (!sb) { + printk(KERN_ERR "EXT4-fs: %s:%d: inode on " + "nonexistent device\n", __func__, __LINE__); return; } - if (inode->i_nlink) { - printk(KERN_ERR "ext4_free_inode: inode has nlink=%d\n", - inode->i_nlink); + if (atomic_read(&inode->i_count) > 1) { + ext4_msg(sb, KERN_ERR, "%s:%d: inode #%lu: count=%d", + __func__, __LINE__, inode->i_ino, + atomic_read(&inode->i_count)); return; } - if (!sb) { - printk(KERN_ERR "ext4_free_inode: inode on " - "nonexistent device\n"); + if (inode->i_nlink) { + ext4_msg(sb, KERN_ERR, "%s:%d: inode #%lu: nlink=%d\n", + __func__, __LINE__, inode->i_ino, inode->i_nlink); return; } sbi = EXT4_SB(sb); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a11264ebd1f..83a2daeb813 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1428,20 +1428,22 @@ static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd) static void ext4_print_free_blocks(struct inode *inode) { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); - printk(KERN_CRIT "Total free blocks count %lld\n", + struct super_block *sb = inode->i_sb; + + ext4_msg(sb, KERN_CRIT, "Total free blocks count %lld", EXT4_C2B(EXT4_SB(inode->i_sb), ext4_count_free_clusters(inode->i_sb))); - printk(KERN_CRIT "Free/Dirty block details\n"); - printk(KERN_CRIT "free_blocks=%lld\n", + ext4_msg(sb, KERN_CRIT, "Free/Dirty block details"); + ext4_msg(sb, KERN_CRIT, "free_blocks=%lld", (long long) EXT4_C2B(EXT4_SB(inode->i_sb), percpu_counter_sum(&sbi->s_freeclusters_counter))); - printk(KERN_CRIT "dirty_blocks=%lld\n", + ext4_msg(sb, KERN_CRIT, "dirty_blocks=%lld", (long long) EXT4_C2B(EXT4_SB(inode->i_sb), percpu_counter_sum(&sbi->s_dirtyclusters_counter))); - printk(KERN_CRIT "Block reservation details\n"); - printk(KERN_CRIT "i_reserved_data_blocks=%u\n", - EXT4_I(inode)->i_reserved_data_blocks); - printk(KERN_CRIT "i_reserved_meta_blocks=%u\n", + ext4_msg(sb, KERN_CRIT, "Block reservation details"); + ext4_msg(sb, KERN_CRIT, "i_reserved_data_blocks=%u", + EXT4_I(inode)->i_reserved_data_blocks); + ext4_msg(sb, KERN_CRIT, "i_reserved_meta_blocks=%u", EXT4_I(inode)->i_reserved_meta_blocks); return; } @@ -2809,8 +2811,9 @@ static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate) goto out; if (!(io_end->inode->i_sb->s_flags & MS_ACTIVE)) { - printk("sb umounted, discard end_io request for inode %lu\n", - io_end->inode->i_ino); + ext4_msg(io_end->inode->i_sb, KERN_INFO, + "sb umounted, discard end_io request for inode %lu", + io_end->inode->i_ino); ext4_free_io_end(io_end); goto out; } diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 3fed79da0d2..b6ad461930c 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1512,16 +1512,17 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, o_blocks_count = ext4_blocks_count(es); if (test_opt(sb, DEBUG)) - printk(KERN_DEBUG "EXT4-fs: extending last group from %llu to %llu blocks\n", - o_blocks_count, n_blocks_count); + ext4_msg(sb, KERN_DEBUG, + "extending last group from %llu to %llu blocks", + o_blocks_count, n_blocks_count); if (n_blocks_count == 0 || n_blocks_count == o_blocks_count) return 0; if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) { - printk(KERN_ERR "EXT4-fs: filesystem on %s:" - " too large to resize to %llu blocks safely\n", - sb->s_id, n_blocks_count); + ext4_msg(sb, KERN_ERR, + "filesystem too large to resize to %llu blocks safely", + n_blocks_count); if (sizeof(sector_t) < 8) ext4_warning(sb, "CONFIG_LBDAF not enabled"); return -EINVAL; @@ -1591,8 +1592,8 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count) o_blocks_count = ext4_blocks_count(es); if (test_opt(sb, DEBUG)) - printk(KERN_DEBUG "EXT4-fs: resizing filesystem from %llu " - "upto %llu blocks\n", o_blocks_count, n_blocks_count); + ext4_msg(sb, KERN_DEBUG, "resizing filesystem from %llu " + "to %llu blocks", o_blocks_count, n_blocks_count); if (n_blocks_count < o_blocks_count) { /* On-line shrinking not supported */ @@ -1676,7 +1677,7 @@ out: iput(resize_inode); if (test_opt(sb, DEBUG)) - printk(KERN_DEBUG "EXT4-fs: resized filesystem from %llu " - "upto %llu blocks\n", o_blocks_count, n_blocks_count); + ext4_msg(sb, KERN_DEBUG, "resized filesystem from %llu " + "upto %llu blocks", o_blocks_count, n_blocks_count); return err; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 11dfaad232c..1e26f4a0b55 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -376,7 +376,7 @@ void ext4_journal_abort_handle(const char *caller, unsigned int line, if (is_handle_aborted(handle)) return; - printk(KERN_ERR "%s:%d: aborting transaction: %s in %s\n", + printk(KERN_ERR "EXT4-fs: %s:%d: aborting transaction: %s in %s\n", caller, line, errstr, err_fn); jbd2_journal_abort_handle(handle); @@ -2809,7 +2809,7 @@ static int ext4_run_lazyinit_thread(void) ext4_clear_request_list(); kfree(ext4_li_info); ext4_li_info = NULL; - printk(KERN_CRIT "EXT4: error %d creating inode table " + printk(KERN_CRIT "EXT4-fs: error %d creating inode table " "initialization thread\n", err); return err; -- cgit v1.2.3-70-g09d2 From afcff5d80a4106e732d903640161d23950eb8e3b Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Wed, 21 Mar 2012 21:47:55 -0400 Subject: ext4: remove restrictive checks for EOFBLOCKS_FL We are going to remove the EOFBLOCKS_FL flag in the future, so this is the first part of the removal. We can not remove it entirely just now, since the e2fsck is still checking for it and it might cause headache to some people. Instead, remove the restrictive checks now and the rest later, when the new e2fsck code is out and common enough. This is also needed because punch hole already breaks the EOFBLOCKS_FL semantics, so it might cause the some troubles. So simply remove it. Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 13 ++++++++----- fs/ext4/inode.c | 6 ++---- 2 files changed, 10 insertions(+), 9 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index d075f34f9ba..1421938e679 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3293,11 +3293,13 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode, depth = ext_depth(inode); eh = path[depth].p_hdr; - if (unlikely(!eh->eh_entries)) { - EXT4_ERROR_INODE(inode, "eh->eh_entries == 0 and " - "EOFBLOCKS_FL set"); - return -EIO; - } + /* + * We're going to remove EOFBLOCKS_FL entirely in future so we + * do not care for this case anymore. Simply remove the flag + * if there are no extents. + */ + if (unlikely(!eh->eh_entries)) + goto out; last_ex = EXT_LAST_EXTENT(eh); /* * We should clear the EOFBLOCKS_FL flag if we are writing the @@ -3321,6 +3323,7 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode, for (i = depth-1; i >= 0; i--) if (path[i].p_idx != EXT_LAST_INDEX(path[i].p_hdr)) return 0; +out: ext4_clear_inode_flag(inode, EXT4_INODE_EOFBLOCKS); return ext4_mark_inode_dirty(handle, inode); } diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 83a2daeb813..27ee10d66fc 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4163,11 +4163,9 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) } if (attr->ia_valid & ATTR_SIZE) { - if (attr->ia_size != i_size_read(inode)) { + if (attr->ia_size != i_size_read(inode)) truncate_setsize(inode, attr->ia_size); - ext4_truncate(inode); - } else if (ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS)) - ext4_truncate(inode); + ext4_truncate(inode); } if (!rc) { -- cgit v1.2.3-70-g09d2 From 73355192748483a5ba698345092321611f91b04f Mon Sep 17 00:00:00 2001 From: Allison Henderson Date: Wed, 21 Mar 2012 22:23:31 -0400 Subject: ext4: correct ext4_punch_hole return codes ext4_punch_hole returns -ENOTSUPP but it should be using -EOPNOTSUPP Signed-off-by: Allison Henderson Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 27ee10d66fc..39bb52c9693 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3340,16 +3340,16 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length) { struct inode *inode = file->f_path.dentry->d_inode; if (!S_ISREG(inode->i_mode)) - return -ENOTSUPP; + return -EOPNOTSUPP; if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) { /* TODO: Add support for non extent hole punching */ - return -ENOTSUPP; + return -EOPNOTSUPP; } if (EXT4_SB(inode->i_sb)->s_cluster_ratio > 1) { /* TODO: Add support for bigalloc file systems */ - return -ENOTSUPP; + return -EOPNOTSUPP; } return ext4_ext_punch_hole(file, offset, length); -- cgit v1.2.3-70-g09d2 From 1b8b9750f07cdd6e13f12c06ae7ec853f2abbe6c Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 21 Mar 2012 22:28:29 -0400 Subject: ext4: do not mark superblock as dirty unnecessarily Commit a0375156ca1041574b5d47cc7e32f10b891151b0 cleaned up superblock dirtying handling, but missed one place. This patch does what was intended: if we have the journal, then we update the superblock through the journal rather than doing this directly. Signed-off-by: Artem Bityutskiy Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 39bb52c9693..c77b0bd2c71 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3935,10 +3935,8 @@ static int ext4_do_update_inode(handle_t *handle, ext4_update_dynamic_rev(sb); EXT4_SET_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_LARGE_FILE); - sb->s_dirt = 1; ext4_handle_sync(handle); - err = ext4_handle_dirty_metadata(handle, NULL, - EXT4_SB(sb)->s_sbh); + err = ext4_handle_dirty_super(handle, sb); } } raw_inode->i_generation = cpu_to_le32(inode->i_generation); -- cgit v1.2.3-70-g09d2