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author | Arnd Bergmann <arnd@arndb.de> | 2012-07-17 20:41:50 (GMT) |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-07-17 20:41:50 (GMT) |
commit | 36c678f3c91ac92e9524abcf9b39f9f539d60279 (patch) | |
tree | c9c0df006a7e9bcc14492b1d1fa6aa2c5c43d3a3 /fs/btrfs/extent_io.c | |
parent | 4450cb7d586c3d8f6615ee437eab1d1e064b20c0 (diff) | |
parent | 14ac5b884eff23f53139dd4508f428aee906d8c2 (diff) | |
download | linux-36c678f3c91ac92e9524abcf9b39f9f539d60279.tar.xz |
Merge tag 'imx-clk' of git://git.pengutronix.de/git/imx/linux-2.6 into next/clk
From Sascha Hauer <s.hauer@pengutronix.de>:
i.MX clk noncritical fixes and updates
* tag 'imx-clk' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: clk-imx31: Fix clock id for rnga driver
ARM: imx: add missing item to the list of clock event modes
ARM: i.MX5x CSPI: Fixed clock name for CSPI
ARM: i.MX5x clocks: Fix GPT clocks
ARM: i.MX5x clocks: Fix parent for PWM clocks
ARM: i.MX5x clocks: Add EPIT support
ARM: mx27: Reenable silicon version print
ARM: clk-imx27: Fix rtc clock id
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/btrfs/extent_io.c')
-rw-r--r-- | fs/btrfs/extent_io.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index aaa12c1..01c21b6 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3324,6 +3324,7 @@ static int extent_write_cache_pages(struct extent_io_tree *tree, writepage_t writepage, void *data, void (*flush_fn)(void *)) { + struct inode *inode = mapping->host; int ret = 0; int done = 0; int nr_to_write_done = 0; @@ -3334,6 +3335,18 @@ static int extent_write_cache_pages(struct extent_io_tree *tree, int scanned = 0; int tag; + /* + * We have to hold onto the inode so that ordered extents can do their + * work when the IO finishes. The alternative to this is failing to add + * an ordered extent if the igrab() fails there and that is a huge pain + * to deal with, so instead just hold onto the inode throughout the + * writepages operation. If it fails here we are freeing up the inode + * anyway and we'd rather not waste our time writing out stuff that is + * going to be truncated anyway. + */ + if (!igrab(inode)) + return 0; + pagevec_init(&pvec, 0); if (wbc->range_cyclic) { index = mapping->writeback_index; /* Start from prev offset */ @@ -3428,6 +3441,7 @@ retry: index = 0; goto retry; } + btrfs_add_delayed_iput(inode); return ret; } |