]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure.
authorDavid Woodhouse <dwmw2@infradead.org>
Wed, 23 Apr 2008 14:40:52 +0000 (15:40 +0100)
committerDavid Woodhouse <dwmw2@infradead.org>
Wed, 23 Apr 2008 15:01:37 +0000 (16:01 +0100)
commit422b120238130307da64fa44c9fb722bfaf5f1af
tree72f47ac8dcd66ae074d1b4b916ffc8fe32183bf1
parente2bc322bf05936ec7160d62bc3fd45cbf4aa405a
[JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure.

When _all_ the blocks were on the erase_pending_list, we could't find a
block to GC from but there was no _actually_ free space, and
jffs2_reserve_space() would get a little unhappy.

Handle this case by returning -EAGAIN from jffs2_garbage_collect_pass().
There are two callers of that function -- jffs2_flush_wbuf_gc(), which
will interpret it as an error and flush the writebuffer by other means,
and jffs2_reserve_space(), which we modify to respond to -EAGAIN with an
immediate call to jffs2_erase_pending_blocks() and another run round the
loop.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
fs/jffs2/gc.c
fs/jffs2/nodemgmt.c