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path: root/fs/jfs/jfs_metapage.c
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2007-01-17JFS: call io_schedule() instead of schedule() to avoid deadlockDave Kleikamp
The introduction of Jens Axboe's explicit i/o plugging patches introduced a deadlock in jfs. This was caused by the process initiating I/O not unplugging the queue before waiting on the commit thread. The commit thread itself was waiting for that I/O to complete. Calling io_schedule() rather than schedule() unplugs the I/O queue avoiding the deadlock, and it appears to be the right function to call in any case. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-12-21[PATCH] Fix JFS after clear_page_dirty() removalDave Kleikamp
This patch removes some questionable code that attempted to make a no-longer-used page easier to reclaim. Calling metapage_writepage against such a page will not result in any I/O being performed, so removing this code shouldn't be a big deal. [ It's likely that we could have just replaced the "clear_page_dirty()" call with a call to "cancel_dirty_page()" instead, but in the meantime this is cleaner and simpler anyway, so unless there is some overriding reason (and Dave implies there isn't) I'll just use this patch as-is. - Linus ] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove kmem_cache_tChristoph Lameter
Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02JFS: White space cleanupDave Kleikamp
Removed trailing spaces & tabs, and spaces preceding tabs. Also a couple very minor comment cleanups. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
2006-09-27[PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o
This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] mark address_space_operations constChristoph Hellwig
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23[PATCH] read_mapping_page for address spacePekka Enberg
Add read_mapping_page() which is used for callers that pass mapping->a_ops->readpage as the filler for read_cache_page. This removes some duplication from filesystem code. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-24JFS: Fix multiple errors in metapage_releasepageDave Kleikamp
It looks like metapage_releasepage was making in invalid assumption that the releasepage method would not be called on a dirty page. Instead of issuing a warning and releasing the metapage, it should return 0, indicating that the private data for the page cannot be released. I also realized that metapage_releasepage had the return code all wrong. If it is successful in releasing the private data, it should return 1, otherwise it needs to return 0. Lastly, there is no need to call wait_on_page_writeback, since try_to_release_page will not call us with a page in writback state. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2006-03-26[PATCH] mempool: use mempool_create_slab_pool()Matthew Dobson
Modify well over a dozen mempool users to call mempool_create_slab_pool() rather than calling mempool_create() with extra arguments, saving about 30 lines of code and increasing readability. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] Make address_space_operations->invalidatepage return voidNeilBrown
The return value of this function is never used, so let's be honest and declare it as void. Some places where invalidatepage returned 0, I have inserted comments suggesting a BUG_ON. [akpm@osdl.org: JBD BUG fix] [akpm@osdl.org: rework for git-nfs] [akpm@osdl.org: don't go BUG in block_invalidate_page()] Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-23JFS: kzalloc conversionEric Sesterhenn
this converts fs/jfs to kzalloc() usage. compile tested with make allyesconfig Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-10-29[PATCH] mm: split page table lockHugh Dickins
Christoph Lameter demonstrated very poor scalability on the SGI 512-way, with a many-threaded application which concurrently initializes different parts of a large anonymous area. This patch corrects that, by using a separate spinlock per page table page, to guard the page table entries in that page, instead of using the mm's single page_table_lock. (But even then, page_table_lock is still used to guard page table allocation, and anon_vma allocation.) In this implementation, the spinlock is tucked inside the struct page of the page table page: with a BUILD_BUG_ON in case it overflows - which it would in the case of 32-bit PA-RISC with spinlock debugging enabled. Splitting the lock is not quite for free: another cacheline access. Ideally, I suppose we would use split ptlock only for multi-threaded processes on multi-cpu machines; but deciding that dynamically would have its own costs. So for now enable it by config, at some number of cpus - since the Kconfig language doesn't support inequalities, let preprocessor compare that with NR_CPUS. But I don't think it's worth being user-configurable: for good testing of both split and unsplit configs, split now at 4 cpus, and perhaps change that to 8 later. There is a benefit even for singly threaded processes: kswapd can be attacking one part of the mm while another part is busy faulting. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
2005-10-28[PATCH] gfp_t: fs/*Al Viro
- ->releasepage() annotated (s/int/gfp_t), instances updated - missing gfp_t in fs/* added - fixed misannotation from the original sweep caught by bitwise checks: XFS used __nocast both for gfp_t and for flags used by XFS allocator. The latter left with unsigned int __nocast; we might want to add a different type for those but for now let's leave them alone. That, BTW, is a case when __nocast use had been actively confusing - it had been used in the same code for two different and similar types, with no way to catch misuses. Switch of gfp_t to bitwise had caught that immediately... One tricky bit is left alone to be dealt with later - mapping->flags is a mix of gfp_t and error indications. Left alone for now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-03JFS: make special inodes play nicely with page balancingDave Kleikamp
This patch fixes up a few problems with jfs's reserved inodes. 1. There is no need for the jfs code setting the I_DIRTY bits in i_state. I am ashamed that the code ever did this, and surprised it hasn't been noticed until now. 2. Make sure special inodes are on an inode hash list. If the inodes are unhashed, __mark_inode_dirty will fail to put the inode on the superblock's dirty list, and the data will not be flushed under memory pressure. 3. Force writing journal data to disk when metapage_writepage is unable to write a metadata page due to pending journal I/O. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-07-22JFS: Fix typo in last patchDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-07-15JFS: fsync wrong behavior when I/O failure occursQu Fuping
This is half of a patch that Qu Fuping submitted in April. The first part was applied to fs/mpage.c in 2.6.12-rc4. jfs_fsync should return error, but it doesn't wait for the metadata page to be uptodate, e.g.: jfs_fsync->jfs_commit_inode->txCommit->diWrite->read_metapage-> __get_metapage->read_cache_page reads a page from disk. Because read is async, when read_cache_page: err = filler(data, page), filler will not return error, it just submits I/O request and returns. So, page is not uptodate. Checking only if(IS_ERROR(mp->page)) is not enough, we should add "|| !PageUptodate(mp->page)" Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-07-14JFS: Remove bogus WARN_ON statement and some dead codeDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-05-04JFS: Fix sparse warningDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-05-04JFS: fix sparse warnings by moving extern declarations to headersDave Kleikamp
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2005-05-02[PATCH] JFS: Support page sizes greater than 4KDave Kleikamp
jfs has never worked on architecutures where the page size was not 4K. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!