AcoSail/kernel_optimize_test
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ext4: mark metadata blocks using bh flags

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This allows metadata writebacks which are issued via block device
writeback to be sent with the current write request flags.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2013-04-21 16:45:54 -04:00
parent 877f962c5e
commit 13fca323e9
2 changed files with 7 additions and 1 deletions
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2
fs/ext4/ext4_jbd2.c
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@ -215,6 +215,8 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
might_sleep();
set_buffer_meta(bh);
set_buffer_prio(bh);
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
if (err) {

6
fs/ext4/inode.c
View File

@ -1080,10 +1080,14 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
/* For write_end() in data=journal mode */
static int write_end_fn(handle_t *handle, struct buffer_head *bh)
{
int ret;
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
set_buffer_uptodate(bh);
return ext4_handle_dirty_metadata(handle, NULL, bh);
ret = ext4_handle_dirty_metadata(handle, NULL, bh);
clear_buffer_meta(bh);
clear_buffer_prio(bh);
return ret;
}
/*