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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 07:25:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 07:25:43 -0700
commit05ec7dd8dd5aa42c22a49682e4a51cadd4166b7e (patch)
tree6370b43c0d8f324aa7421bbb5a647aa04ab5d747 /fs/jffs2/erase.c
parentc316ba3b518bc35ce5aef5421135220389f4eb98 (diff)
parent8046112818b70329e930b1d4557ef0876c1ad2bb (diff)
downloadlinux-05ec7dd8dd5aa42c22a49682e4a51cadd4166b7e.tar.bz2
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (154 commits) mtd: cfi_cmdset_0002: use AMD standard command-set with Winbond flash chips mtd: cfi_cmdset_0002: Fix MODULE_ALIAS and linkage for new 0701 commandset ID mtd: mxc_nand: Remove duplicate NAND_CMD_RESET case value mtd: update gfp/slab.h includes jffs2: Stop triggering block erases from jffs2_write_super() jffs2: Rename jffs2_erase_pending_trigger() to jffs2_dirty_trigger() jffs2: Use jffs2_garbage_collect_trigger() to trigger pending erases jffs2: Require jffs2_garbage_collect_trigger() to be called with lock held jffs2: Wake GC thread when there are blocks to be erased jffs2: Erase pending blocks in GC pass, avoid invalid -EIO return jffs2: Add 'work_done' return value from jffs2_erase_pending_blocks() mtd: mtdchar: Do not corrupt backing device of device node inode mtd/maps/pcmciamtd: Fix printk format for ssize_t in debug messages drivers/mtd: Use kmemdup mtd: cfi_cmdset_0002: Fix argument order in bootloc warning mtd: nand: add Toshiba TC58NVG0 device ID pcmciamtd: add another ID pcmciamtd: coding style cleanups pcmciamtd: fixing obvious errors mtd: chips: add SST39WF160x NOR-flashes ... Trivial conflicts due to dev_node removal in drivers/mtd/maps/pcmciamtd.c
Diffstat (limited to 'fs/jffs2/erase.c')
-rw-r--r--fs/jffs2/erase.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index b47679be118a..6286ad9b00f7 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -103,9 +103,10 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
jffs2_erase_failed(c, jeb, bad_offset);
}
-void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
+int jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
{
struct jffs2_eraseblock *jeb;
+ int work_done = 0;
mutex_lock(&c->erase_free_sem);
@@ -121,6 +122,7 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
mutex_unlock(&c->erase_free_sem);
jffs2_mark_erased_block(c, jeb);
+ work_done++;
if (!--count) {
D1(printk(KERN_DEBUG "Count reached. jffs2_erase_pending_blocks leaving\n"));
goto done;
@@ -157,6 +159,7 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
mutex_unlock(&c->erase_free_sem);
done:
D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n"));
+ return work_done;
}
static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
@@ -165,10 +168,11 @@ static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblo
mutex_lock(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_move_tail(&jeb->list, &c->erase_complete_list);
+ /* Wake the GC thread to mark them clean */
+ jffs2_garbage_collect_trigger(c);
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->erase_free_sem);
- /* Ensure that kupdated calls us again to mark them clean */
- jffs2_erase_pending_trigger(c);
+ wake_up(&c->erase_wait);
}
static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset)
@@ -487,9 +491,9 @@ filebad:
refile:
/* Stick it back on the list from whence it came and come back later */
- jffs2_erase_pending_trigger(c);
mutex_lock(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
+ jffs2_garbage_collect_trigger(c);
list_move(&jeb->list, &c->erase_complete_list);
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->erase_free_sem);