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authorTheodore Ts'o <tytso@mit.edu>2009-11-23 07:17:05 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-11-23 07:17:05 -0500
commite6362609b6c71c5b802026be9cf263bbdd67a50e (patch)
treebe908b6b0566f70d31378bf11b548a0d59ae0218 /include/trace/events/ext4.h
parent4433871130f36585fde38e7dd817433296648945 (diff)
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ext4: call ext4_forget() from ext4_free_blocks()
Add the facility for ext4_forget() to be called from ext4_free_blocks(). This simplifies the code in a large number of places, and centralizes most of the work of calling ext4_forget() into a single place. Also fix a bug in the extents migration code; it wasn't calling ext4_forget() when releasing the indirect blocks during the conversion. As a result, if the system cashed during or shortly after the extents migration, and the released indirect blocks get reused as data blocks, the journal replay would corrupt the data blocks. With this new patch, fixing this bug was as simple as adding the EXT4_FREE_BLOCKS_FORGET flags to the call to ext4_free_blocks(). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'include/trace/events/ext4.h')
-rw-r--r--include/trace/events/ext4.h16
1 files changed, 9 insertions, 7 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index b390e1fc4a7..74f628bfdd1 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -650,30 +650,32 @@ TRACE_EVENT(ext4_allocate_blocks,
TRACE_EVENT(ext4_free_blocks,
TP_PROTO(struct inode *inode, __u64 block, unsigned long count,
- int metadata),
+ int flags),
- TP_ARGS(inode, block, count, metadata),
+ TP_ARGS(inode, block, count, flags),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( ino_t, ino )
+ __field( umode_t, mode )
__field( __u64, block )
__field( unsigned long, count )
- __field( int, metadata )
-
+ __field( int, flags )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
+ __entry->mode = inode->i_mode;
__entry->block = block;
__entry->count = count;
- __entry->metadata = metadata;
+ __entry->flags = flags;
),
- TP_printk("dev %s ino %lu block %llu count %lu metadata %d",
+ TP_printk("dev %s ino %lu mode 0%o block %llu count %lu flags %d",
jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
- __entry->block, __entry->count, __entry->metadata)
+ __entry->mode, __entry->block, __entry->count,
+ __entry->flags)
);
TRACE_EVENT(ext4_sync_file,