apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

ext4: Use WRITE_SYNC for commits which are caused by fsync()

Browse Source 
If a commit is triggered by fsync(), set a flag indicating the journal
blocks associated with the transaction should be flushed out using
WRITE_SYNC.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2009-03-25 23:35:46 -04:00
parent afd4672dc7
commit 7058548cd5
3 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/jbd2/commit.c
+4 -1
View File
@@ -367,6 +367,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
int tag_bytes = journal_tag_bytes(journal);
struct buffer_head *cbh = NULL; /* For transactional checksums */
__u32 crc32_sum = ~0;
int write_op = WRITE;
/*
* First job: lock down the current transaction and wait for
@@ -401,6 +402,8 @@ void jbd2_journal_commit_transaction(journal_t *journal)
spin_lock(&journal->j_state_lock);
commit_transaction->t_state = T_LOCKED;
if (commit_transaction->t_synchronous_commit)
write_op = WRITE_SYNC;
stats.u.run.rs_wait = commit_transaction->t_max_wait;
stats.u.run.rs_locked = jiffies;
stats.u.run.rs_running = jbd2_time_diff(commit_transaction->t_start,
@@ -680,7 +683,7 @@ start_journal_io:
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
bh->b_end_io = journal_end_buffer_io_sync;
submit_bh(WRITE, bh);
submit_bh(write_op, bh);
}
cond_resched();
stats.u.run.rs_blocks_logged += bufs;
fs/jbd2/transaction.c
+2
View File
@@ -1315,6 +1315,8 @@ int jbd2_journal_stop(handle_t *handle)
}
}
if (handle->h_sync)
transaction->t_synchronous_commit = 1;
current->journal_info = NULL;
spin_lock(&journal->j_state_lock);
spin_lock(&transaction->t_handle_lock);