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| author | Theodore Ts'o <tytso@mit.edu> | 2018-12-19 14:36:58 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-12-19 14:36:58 -0500 |
| commit | 18f2c4fcebf2582f96cbd5f2238f4f354a0e4847 (patch) | |
| tree | 633eb9e94a620d818dbb8bd6cdd288c6f1dc5f49 /fs/ext4 | |
| parent | fde872682e175743e0c3ef939c89e3c6008a1529 (diff) | |
| download | linux-18f2c4fcebf2582f96cbd5f2238f4f354a0e4847.tar.gz | |
ext4: check for shutdown and r/o file system in ext4_write_inode()
If the file system has been shut down or is read-only, then ext4_write_inode() needs to bail out early. Also use jbd2_complete_transaction() instead of ext4_force_commit() so we only force a commit if it is needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 664b434ba836..9affabd07682 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5400,9 +5400,13 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc) { int err; - if (WARN_ON_ONCE(current->flags & PF_MEMALLOC)) + if (WARN_ON_ONCE(current->flags & PF_MEMALLOC) || + sb_rdonly(inode->i_sb)) return 0; + if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) + return -EIO; + if (EXT4_SB(inode->i_sb)->s_journal) { if (ext4_journal_current_handle()) { jbd_debug(1, "called recursively, non-PF_MEMALLOC!\n"); @@ -5418,7 +5422,8 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc) if (wbc->sync_mode != WB_SYNC_ALL || wbc->for_sync) return 0; - err = ext4_force_commit(inode->i_sb); + err = jbd2_complete_transaction(EXT4_SB(inode->i_sb)->s_journal, + EXT4_I(inode)->i_sync_tid); } else { struct ext4_iloc iloc; |