07 Nov, 2008
1 commit
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* git://git.infradead.org/mtd-2.6:
[JFFS2] fix race condition in jffs2_lzo_compress()
[MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)
[JFFS2] Fix lack of locking in thread_should_wake()
[JFFS2] Fix build failure with !CONFIG_JFFS2_FS_WRITEBUFFER
[MTD] [NAND] OMAP2: remove duplicated #include
06 Nov, 2008
1 commit
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deflate_mutex protects the globals lzo_mem and lzo_compress_buf. However,
jffs2_lzo_compress() unlocks deflate_mutex _before_ it has copied out the
compressed data from lzo_compress_buf. Correct this by moving the mutex
unlock after the copy.In addition, document what deflate_mutex actually protects.
Cc: stable@kernel.org
Signed-off-by: Geert Uytterhoeven
Acked-by: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: David Woodhouse
31 Oct, 2008
1 commit
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The thread_should_wake() function trawls through the list of 'very
dirty' eraseblocks, determining whether the background GC thread should
wake. Doing this without holding the appropriate locks is a bad idea.OLPC Trac #8615
Signed-off-by: David Woodhouse
Cc: stable@kernel.org
23 Oct, 2008
3 commits
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With this patch all directory fops instances that have a readdir
that doesn't take the BKL are switched to generic_file_llseek.Signed-off-by: Christoph Hellwig
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Now that JFFS2 can be exported by NFS, we need to get this right.
Signed-off-by: David Woodhouse
Signed-off-by: Al Viro -
Now that the readdir/lookup deadlock issues have been dealt with, we can
export JFFS2 file systems again.(For now, you have to specify fsid manually; we should add a method to
the export_ops to handle that too.)Signed-off-by: David Woodhouse
Signed-off-by: Al Viro
21 Oct, 2008
1 commit
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Build failure introduced by 5bf1723723487ddb0b9c9641b6559da96b27cc93
[JFFS2] Write buffer offset adjustment for NOR-ECC (Sibley) flashSigned-off-by: Steve Glendinning
Signed-off-by: David Woodhouse
18 Oct, 2008
1 commit
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After choosing new c->nextblock, don't leave the wbuf offset field
occasionally pointing at the start of the next physical eraseblock.
This was causing a BUG() on NOR-ECC (Sibley) flash, where we start
writing after the cleanmarker.Among other this fix should cover write buffer offset adjustment
after flushing the last page of an eraseblock.Signed-off-by: Alexander Belyakov
Signed-off-by: David Woodhouse
17 Oct, 2008
1 commit
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Make the parameter names of jffs2_compress() in its comments match with the
actual implementationSigned-off-by: Geert Uytterhoeven
Signed-off-by: David Woodhouse
01 Sep, 2008
3 commits
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Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().
Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.Signed-off-by: David Howells
Reviewed-by: James Morris
Acked-by: Serge Hallyn
Signed-off-by: David Woodhouse -
Signed-off-by: Alexey Dobriyan
Signed-off-by: David Woodhouse
24 Aug, 2008
1 commit
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This patch lets the files using linux/version.h match the files that
#include it.Signed-off-by: Adrian Bunk
Signed-off-by: Linus Torvalds
18 Aug, 2008
1 commit
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Signed-off-by: David Woodhouse
14 Aug, 2008
1 commit
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Signed-off-by: Adrian Hunter
Signed-off-by: David Woodhouse
12 Aug, 2008
1 commit
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Signed-off-by: Adrian Hunter
Signed-off-by: David Woodhouse
01 Aug, 2008
1 commit
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We can't use vmalloc for the buffer we use for writing summaries,
because some drivers may want to DMA from it. So limit the size to 64KiB
and use kmalloc for it instead.Signed-off-by: David Woodhouse
27 Jul, 2008
3 commits
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* git://git.infradead.org/mtd-2.6: (57 commits)
[MTD] [NAND] subpage read feature as a way to increase performance.
CPUFREQ: S3C24XX NAND driver frequency scaling support.
[MTD][NAND] au1550nd: remove unused variable
[MTD] jedec_probe: Fix SST 16-bit chip detection
[MTD][MTDPART] Fix a division by zero bug
[MTD][MTDPART] Cleanup and document the erase region handling
[MTD][MTDPART] Handle most checkpatch findings
[MTD][MTDPART] Seperate main loop from per-partition code in add_mtd_partition
[MTD] physmap: resume already suspended chips on failure to suspend
[MTD] physmap: Fix suspend/resume/shutdown bugs.
[MTD] [NOR] Fix -ETIMEO errors in CFI driver
[MTD] [NAND] fsl_elbc_nand: fix section mismatch with CONFIG_MTD_OF_PARTS=y
[JFFS2] Use .unlocked_ioctl
[MTD] Fix const assignment in the MTD command line partitioning driver
[MTD] [NOR] gen_probe: No debug message when debugging is disabled
[MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip drivers
[MTD] [MAPS] Remove the bast-flash driver.
[MTD] [NAND] fsl_elbc_nand: ecclayout cleanups
[MTD] [NAND] fsl_elbc_nand: implement support for flash-based BBT
[MTD] [NAND] fsl_elbc_nand: fix OOB workability for large page NAND chips
... -
* kill nameidata * argument; map the 3 bits in ->flags anybody cares
about to new MAY_... ones and pass with the mask.
* kill redundant gfs2_iop_permission()
* sanitize ecryptfs_permission()
* fix remaining places where ->permission() instances might barf on new
MAY_... found in mask.The obvious next target in that direction is permission(9)
folded fix for nfs_permission() breakage from Miklos Szeredi
Signed-off-by: Al Viro
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Kmem cache passed to constructor is only needed for constructors that are
themselves multiplexeres. Nobody uses this "feature", nor does anybody uses
passed kmem cache in non-trivial way, so pass only pointer to object.Non-trivial places are:
arch/powerpc/mm/init_64.c
arch/powerpc/mm/hugetlbpage.cThis is flag day, yes.
Signed-off-by: Alexey Dobriyan
Acked-by: Pekka Enberg
Acked-by: Christoph Lameter
Cc: Jon Tollefson
Cc: Nick Piggin
Cc: Matt Mackall
[akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]
[akpm@linux-foundation.org: fix mm/slab.c]
[akpm@linux-foundation.org: fix ubifs]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Jul, 2008
1 commit
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This changes the .ioctl to the .unlocked_ioctl version.
Signed-off-by: Stoyan Gaydarov
Signed-off-by: David Woodhouse
02 May, 2008
4 commits
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* git://git.infradead.org/mtd-2.6:
[MTD][NOR] Add physical address to point() method
[JFFS2] Track parent inode for directories (for NFS export)
[JFFS2] Invert last argument of jffs2_gc_fetch_inode(), make it boolean.
[JFFS2] Quiet lockdep false positive.
[JFFS2] Clean up jffs2_alloc_inode() and jffs2_i_init_once()
[MTD] Delete long-unused jedec.h header file.
[MTD] [NAND] at91_nand: use at91_nand_{en,dis}able consistently. -
Adding the ability to get a physical address from point() in addition
to virtual address. This physical address is required for XIP of
userspace code from flash.Signed-off-by: Jared Hulbert
Reviewed-by: Jörn Engel
Acked-by: Nicolas Pitre
Acked-by: Greg Ungerer
Signed-off-by: David Woodhouse -
To support NFS export, we need to know the parent inode of directories.
Rather than growing the jffs2_inode_cache structure, share space with
the nlink field -- which was always set to 1 for directories anyway.Signed-off-by: David Woodhouse
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We don't actually care about nlink; we only care whether the inode in
question is unlinked or not.Signed-off-by: David Woodhouse
01 May, 2008
2 commits
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Don't hold f->sem while calling into jffs2_do_create(). It makes lockdep
unhappy, and we don't really need it -- the _reason_ it's a false
positive is because nobody else can see this inode yet and so nobody
will be trying to lock it anyway.Signed-off-by: David Woodhouse
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Ditch a couple of pointless casts from void *, and use the normal
variable name 'f' for jffs2_inode_info pointers -- especially since
it actually shows up in lockdep reports.Signed-off-by: David Woodhouse
30 Apr, 2008
1 commit
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__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Apr, 2008
9 commits
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We haven't seen bugs in this for a while now, since the rewrite. No need
to be _quite_ so verbose...Signed-off-by: David Woodhouse
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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
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Just to keep the debug code happy when it's adding all the blocks up.
Otherwise, they disappear for a while while the locks are dropped to
check them and write the cleanmarker.Signed-off-by: David Woodhouse
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It looks the error paths in jffs2_block_check_erase() have wrong return
values. A block that failed to be erased never gets marked as bad.Signed-off-by: David Woodhouse
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Haven't had any complaints about it recently, despite having the test
code enabled to verify that the calculated length is correct.Kill it off, just by #undef TEST_TOTLEN for now; removing it for real
can come a little later.Signed-off-by: David Woodhouse
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Signed-off-by: David Woodhouse
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The problem fixed in commit 014b164e1392a166fe96e003d2f0e7ad2e2a0bb7
(space leak with in-band cleanmarkers) would have been caught a lot
quicker if our paranoid debugging mode had included adding up the size
counts from all the eraseblocks and comparing the totals with the counts
in the superblock. Add that.Make jffs2_mark_erased_block() file the newly-erased block on the
free_list before calling the debug function, to make it happy.Signed-off-by: David Woodhouse
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We were accounting for the cleanmarker by calling jffs2_link_node_ref()
(without locking!), which adjusted both superblock and per-eraseblock
accounting, subtracting the size of the cleanmarker from {jeb,c}->free_size
and adding it to {jeb,c}->used_size.But only _then_ were we adding the size of the newly-erased block back
to the superblock counts, and we were adding each of jeb->{free,used}_size
to the corresponding superblock counts. Thus, the size of the cleanmarker
was effectively subtracted from the superblock's free_size _twice_.Fix this, by always adding a full eraseblock size to c->free_size when
we've erased a block. And call jffs2_link_node_ref() under the proper
lock, while we're at it.Thanks to Alexander Yurchenko and/or Damir Shayhutdinov for (almost)
pinpointing the problem.Signed-off-by: David Woodhouse
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... instead of which we don't need any more anyway.
Signed-off-by: David Woodhouse
22 Apr, 2008
3 commits
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Signed-off-by: David Woodhouse
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Add the write verification buffer to the dataflash. The mtd_dataflash has
the CONFIG_DATAFLASH_WRITE_VERIFY so is better a change to Kconfig.Signed-off-by: Michael Trimarchi
Signed-off-by: Andrew Morton
Signed-off-by: David Woodhouse -
fs/jffs2/gc.c:1147:29: warning: symbol 'jeb' shadows an earlier one
fs/jffs2/gc.c:1084:89: originally declared here
fs/jffs2/gc.c:1197:29: warning: symbol 'jeb' shadows an earlier one
fs/jffs2/gc.c:1084:89: originally declared hereRename the unused 'jeb' argument to avoid this. We could potentially
remove the argument, but GCC should be doing that anyway.Signed-off-by: David Woodhouse
