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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-08-28 21:29:32 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-10-14 13:10:20 +0300 |
| commit | 33818bbb84cd371b63ed8849cc5264d24c8b3aa2 (patch) | |
| tree | ecee6a8f02d2d103c6eb33cc6173e74343b1861b /drivers/mtd/ubi/vtbl.c | |
| parent | ef6075fbfca9139f428d52d60e671da38aa2e212 (diff) | |
| download | lwn-33818bbb84cd371b63ed8849cc5264d24c8b3aa2.tar.gz lwn-33818bbb84cd371b63ed8849cc5264d24c8b3aa2.zip | |
UBI: allocate memory with GFP_NOFS
Use GFP_NOFS flag when allocating memory on I/O path, because otherwise
we may deadlock the filesystem which works on top of us. We observed
the deadlocks with UBIFS. Example:
VFS->FS lock a lock->UBI->kmalloc()->VFS writeback->FS locks the same
lock again.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/vtbl.c')
| -rw-r--r-- | drivers/mtd/ubi/vtbl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index bc5df50813d6..b0a1e8426456 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -264,7 +264,7 @@ static int create_vtbl(const struct ubi_device *ubi, struct ubi_scan_info *si, ubi_msg("create volume table (copy #%d)", copy + 1); - vid_hdr = ubi_zalloc_vid_hdr(ubi); + vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_KERNEL); if (!vid_hdr) return -ENOMEM; |