diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/reiserfs/inode.c | 7 | ||||
| -rw-r--r-- | fs/reiserfs/journal.c | 19 |
2 files changed, 21 insertions, 5 deletions
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 60e2f234470..b33d67bba2f 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -2363,6 +2363,13 @@ static int reiserfs_write_full_page(struct page *page, int bh_per_page = PAGE_CACHE_SIZE / s->s_blocksize; th.t_trans_id = 0; + /* no logging allowed when nonblocking or from PF_MEMALLOC */ + if (checked && (current->flags & PF_MEMALLOC)) { + redirty_page_for_writepage(wbc, page); + unlock_page(page); + return 0; + } + /* The page dirty bit is cleared before writepage is called, which * means we have to tell create_empty_buffers to make dirty buffers * The page really should be up to date at this point, so tossing diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index bc8fe963b3c..1b2402a9a8e 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -988,6 +988,7 @@ static int flush_commit_list(struct super_block *s, struct reiserfs_journal *journal = SB_JOURNAL(s); int barrier = 0; int retval = 0; + int write_len; reiserfs_check_lock_depth(s, "flush_commit_list"); @@ -1037,16 +1038,24 @@ static int flush_commit_list(struct super_block *s, BUG_ON(!list_empty(&jl->j_bh_list)); /* * for the description block and all the log blocks, submit any buffers - * that haven't already reached the disk + * that haven't already reached the disk. Try to write at least 256 + * log blocks. later on, we will only wait on blocks that correspond + * to this transaction, but while we're unplugging we might as well + * get a chunk of data on there. */ atomic_inc(&journal->j_async_throttle); - for (i = 0; i < (jl->j_len + 1); i++) { + write_len = jl->j_len + 1; + if (write_len < 256) + write_len = 256; + for (i = 0 ; i < write_len ; i++) { bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start + i) % SB_ONDISK_JOURNAL_SIZE(s); tbh = journal_find_get_block(s, bn); - if (buffer_dirty(tbh)) /* redundant, ll_rw_block() checks */ - ll_rw_block(SWRITE, 1, &tbh); - put_bh(tbh); + if (tbh) { + if (buffer_dirty(tbh)) + ll_rw_block(WRITE, 1, &tbh) ; + put_bh(tbh) ; + } } atomic_dec(&journal->j_async_throttle); |