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2007-10-12NTFS: Fix a mount time deadlock.Anton Altaparmakov1-11/+11
Big thanks go to Mathias Kolehmainen for reporting the bug, providing debug output and testing the patches I sent him to get it working. The fix was to stop calling ntfs_attr_set() at mount time as that causes balance_dirty_pages_ratelimited() to be called which on systems with little memory actually tries to go and balance the dirty pages which tries to take the s_umount semaphore but because we are still in fill_super() across which the VFS holds s_umount for writing this results in a deadlock. We now do the dirty work by hand by submitting individual buffers. This has the annoying "feature" that mounting can take a few seconds if the journal is large as we have clear it all. One day someone should improve on this by deferring the journal clearing to a helper kernel thread so it can be done in the background but I don't have time for this at the moment and the current solution works fine so I am leaving it like this for now. Signed-off-by: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-12ntfs: use zero_user_pageNate Diller1-27/+9
Use zero_user_page() instead of open-coding it. [akpm@linux-foundation.org: kmap-type fixes] Signed-off-by: Nate Diller <nate.diller@gmail.com> Acked-by: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30[PATCH] ntfs: kmap_atomic() atomicity fixAndrew Morton1-0/+4
The KM_BIO_SRC_IRQ kmap slot requires local irq protection. Acked-by: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-01[PATCH] fs/ntfs: Conversion to generic booleanRichard Knutsson1-15/+15
Conversion of booleans to: generic-boolean.patch (2006-08-23) Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se> Signed-off-by: Anton Altaparmakov <aia21@cantab.net> 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 Hellwig1-2/+2
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>
2006-03-23NTFS: Semaphore to mutex conversion.Ingo Molnar1-3/+3
The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2006-03-23NTFS: Remove all the make_bad_inode() calls. This should only be calledAnton Altaparmakov1-1/+0
from read inode and new inode code paths. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2006-03-23NTFS: Use buffer_migrate_page() for the ->migratepage function of all ntfsAnton Altaparmakov1-0/+7
address space operations. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2006-02-24NTFS: Implement support for sector sizes above 512 bytes (up to the maximumAnton Altaparmakov1-10/+8
supported by NTFS which is 4096 bytes).
2005-10-19NTFS: $EA attributes can be both resident non-resident.Anton Altaparmakov1-3/+2
Minor tidying. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-10-11NTFS: Remove address space operations ->prepare_write and ->commit_write inAnton Altaparmakov1-827/+0
preparation for the big rewrite of write(2) support in ntfs. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-19NTFS: Fix ntfs_{read,write}page() to cope with concurrent truncates better.Anton Altaparmakov1-36/+74
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-19NTFS: Fix handling of compressed directories that I broke in earlier changeset.Anton Altaparmakov1-4/+8
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-10[PATCH] ntfs build fixAndrew Morton1-0/+1
*** Warning: "bit_spin_lock" [fs/ntfs/ntfs.ko] undefined! *** Warning: "bit_spin_unlock" [fs/ntfs/ntfs.ko] undefined! Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-08NTFS: 2.1.24 release and some minor final fixes.Anton Altaparmakov1-6/+4
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Improve scalability by changing the driver global spin lock inAnton Altaparmakov1-6/+9
fs/ntfs/aops.c::ntfs_end_buffer_async_read() to a bit spin lock in the first buffer head of a page. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Fix page_has_buffers()/page_buffers() handling in fs/ntfs/aops.c.Anton Altaparmakov1-17/+21
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Fixup handling of sparse, compressed, and encrypted attributes inAnton Altaparmakov1-17/+24
fs/ntfs/aops.c::ntfs_readpage(). Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Fix fs/ntfs/aops.c::ntfs_{read,write}_block() to handle the caseAnton Altaparmakov1-11/+40
where a concurrent truncate has truncated the runlist under our feet. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Optimize fs/ntfs/aops.c::ntfs_write_block() by extending the pageAnton Altaparmakov1-10/+3
lock protection over the buffer submission for i/o which allows the removal of the get_bh()/put_bh() pairs for each buffer. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Fixup handling of sparse, compressed, and encrypted attributes inAnton Altaparmakov1-57/+47
fs/ntfs/aops.c::ntfs_writepage(). Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-09-08NTFS: Make ntfs_write_block() not instantiate sparse blocks if they are zero.Anton Altaparmakov1-0/+21
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-08-16NTFS: Complete the previous fix for the unset device when mapping buffersAnton Altaparmakov1-0/+1
for mft record writing. I had missed the writepage based mft record write code path. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-06-25NTFS: Fix a bug in address space operations error recovery code paths whereAnton Altaparmakov1-4/+12
if the runlist was not mapped at all and a mapping error occured we would leave the runlist locked on exit to the function so that the next access to the same file would try to take the lock and deadlock. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Use MAX_BUF_PER_PAGE instead of variable sized array allocation forAnton Altaparmakov1-6/+8
better code generation and one less sparse warning in fs/ntfs/aops.c. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Modify ->readpage and ->writepage (fs/ntfs/aops.c) so they detectAnton Altaparmakov1-0/+18
and handle the case where an attribute is converted from resident to non-resident by a concurrent file write. - Reorder some operations when converting an attribute from resident to non-resident (fs/ntfs/attrib.c) so it is safe wrt concurrent ->readpage and ->writepage. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix printk format warnings on ia64. (Randy Dunlap)Randy Dunlap1-1/+2
Signed-off-by: Randy Dunlap <rddunlap@osdl.org> Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-lockingAnton Altaparmakov1-24/+10
helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist(). This allows us to map runlist fragments with the runlist lock already held without having to drop and reacquire it around the call. Adapt all callers. - Change ntfs_find_vcn() to ntfs_find_vcn_nolock() which takes a locked runlist. This allows us to find runlist elements with the runlist lock already held without having to drop and reacquire it around the call. Adapt all callers. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Optimise/reorganise some error handling code in fs/ntfs/aops.c.Anton Altaparmakov1-11/+6
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fixup the resident attribute resizing code inAnton Altaparmakov1-7/+14
fs/ntfs/aops.c::ntfs_{prepare,commit}_write()() and re-enable it. It should be safe now. (Famous last words...) Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Repeat a failed ntfs_truncate() in fs/ntfs/aops.c::ntfs_writepage()Anton Altaparmakov1-10/+21
and abort if it fails again. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Use i_size_{read,write}() in fs/ntfs/{aops.c,mft.c} and protectAnton Altaparmakov1-15/+41
access to the i_size and other size fields using the size_lock. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+2324
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!
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