- 09 9月, 2005 19 次提交
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
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: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
fs/ntfs/aops.c::ntfs_readpage(). Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
where a concurrent truncate has truncated the runlist under our feet. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
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: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
fs/ntfs/aops.c::ntfs_writepage(). Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
fs/ntfs/inode.c::ntfs_read_locked_{,attr_,index_}inode(). Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
updating the times in the inode in ntfs_setattr(). Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
importantly to take a locked runlist rather than them locking it which leads to lock reversal. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Also, add BUG() checks to ntfs_attr_make_non_resident() and ntfs_attr_set() to ensure that these functions are never called for compressed or encrypted attributes. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
- Fix a bug in ntfs_map_runlist_nolock() where we forgot to protect access to the allocated size in the ntfs inode with the size lock. - Fix ntfs_attr_vcn_to_lcn_nolock() and ntfs_attr_find_vcn_nolock() to return LCN_ENOENT when there is no runlist and the allocated size is zero. - Fix load_attribute_list() to handle the case of a NULL runlist. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
index entry is in the index root, we forgot to set the @ir pointer in the index context. Thanks for Yura Pakhuchiy for finding this bug. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
length is zero. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
messages and include the inode number. Thanks to Yura Pakhuchiy for pointing this out. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 08 9月, 2005 6 次提交
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由 Anton Altaparmakov 提交于
fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress(). Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
Thanks to Stefano Picerno for the bug report. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
in the two critical regions. This means we no longer need to panic() when the allocation fails as it now cannot fail. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
- Modify fs/ntfs/malloc.h::ntfs_malloc_nofs() to do the kmalloc() based allocations with __GFP_HIGHMEM, analogous to how the vmalloc() based allocations are done. - Add fs/ntfs/malloc.h::ntfs_malloc_nofs_nofail() which is analogous to ntfs_malloc_nofs() but it performs allocations with __GFP_NOFAIL and hence cannot fail. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
- Support journals ($LogFile) which have been modified by chkdsk. This means users can boot into Windows after we marked the volume dirty. The Windows boot will run chkdsk and then reboot. The user can then immediately boot into Linux rather than having to do a full Windows boot first before rebooting into Linux and we will recognize such a journal and empty it as it is clean by definition. - Support journals ($LogFile) with only one restart page as well as journals with two different restart pages. We sanity check both and either use the only sane one or the more recent one of the two in the case that both are valid. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 17 8月, 2005 1 次提交
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由 Anton Altaparmakov 提交于
for mft record writing. I had missed the writepage based mft record write code path. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 16 8月, 2005 1 次提交
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由 Anton Altaparmakov 提交于
the buffers when mapping them after the VM had discarded them. Thanks to Martin MOKREJŠ for the bug report. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 28 7月, 2005 1 次提交
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由 Olaf Hering 提交于
turn many #if $undefined_string into #ifdef $undefined_string to fix some warnings after -Wno-def was added to global CFLAGS Signed-off-by: NOlaf Hering <olh@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 27 6月, 2005 1 次提交
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由 Anton Altaparmakov 提交于
The situation: VFS inode X on a mounted ntfs volume is dirty. For same inode X, the ntfs_inode is dirty and thus corresponding on-disk inode, i.e. mft record, which is in a dirty PAGE_CACHE_PAGE belonging to the table of inodes, i.e. $MFT, inode 0. What happens: Process 1: sys_sync()/umount()/whatever... calls __sync_single_inode() for $MFT -> do_writepages() -> write_page for the dirty page containing the on-disk inode X, the page is now locked -> ntfs_write_mst_block() which clears PageUptodate() on the page to prevent anyone else getting hold of it whilst it does the write out. This is necessary as the on-disk inode needs "fixups" applied before the write to disk which are removed again after the write and PageUptodate is then set again. It then analyses the page looking for dirty on-disk inodes and when it finds one it calls ntfs_may_write_mft_record() to see if it is safe to write this on-disk inode. This then calls ilookup5() to check if the corresponding VFS inode is in icache(). This in turn calls ifind() which waits on the inode lock via wait_on_inode whilst holding the global inode_lock. Process 2: pdflush results in a call to __sync_single_inode for the same VFS inode X on the ntfs volume. This locks the inode (I_LOCK) then calls write-inode -> ntfs_write_inode -> map_mft_record() -> read_cache_page() for the page (in page cache of table of inodes $MFT, inode 0) containing the on-disk inode. This page has PageUptodate() clear because of Process 1 (see above) so read_cache_page() blocks when it tries to take the page lock for the page so it can call ntfs_read_page(). Thus Process 1 is holding the page lock on the page containing the on-disk inode X and it is waiting on the inode X to be unlocked in ifind() so it can write the page out and then unlock the page. And Process 2 is holding the inode lock on inode X and is waiting for the page to be unlocked so it can call ntfs_readpage() or discover that Process 1 set PageUptodate() again and use the page. Thus we have a deadlock due to ifind() waiting on the inode lock. The solution: The fix is to use the newly introduced ilookup5_nowait() which does not wait on the inode's lock and hence avoids the deadlock. This is safe as we do not care about the VFS inode and only use the fact that it is in the VFS inode cache and the fact that the vfs and ntfs inodes are one struct in memory to find the ntfs inode in memory if present. Also, the ntfs inode has its own locking so it does not matter if the vfs inode is locked. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 26 6月, 2005 4 次提交
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由 Anton Altaparmakov 提交于
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
if the requested vcn is inside it. Otherwise we get into problems when we try to map an out of bounds vcn because we then try to map the already mapped runlist fragment which causes ntfs_mapping_pairs_decompress() to fail and return error. Update ntfs_attr_find_vcn_nolock() accordingly. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
and ntfs_mapping_pairs_build() to allow the runlist encoding to be partial which is desirable when filling holes in sparse attributes. Update all callers. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
LCN_ENOENT in ntfs_attr_make_non_resident(). Otherwise the runlist code gets confused. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 25 6月, 2005 4 次提交
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由 Anton Altaparmakov 提交于
with a 64-bit variable and a int, i.e. 32-bit, constant. This causes the higher order 32-bits of the 64-bit variable to be zeroed. To fix this cast the 'const' to the same 64-bit type as 'var'. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
to be mounted and if this is the case do not allow (re)mounting read-write. This is done by parsing hiberfil.sys if present. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
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: NAnton Altaparmakov <aia21@cantab.net>
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由 Anton Altaparmakov 提交于
is active on the volume and we are mounting read-write or remounting from read-only to read-write. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 27 5月, 2005 2 次提交
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由 Anton Altaparmakov 提交于
possible (fs/ntfs/{attrib.c,index.c,super.c}). Thanks to Al Viro and Pekka Enberg. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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由 Pekka Enberg 提交于
Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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- 05 5月, 2005 1 次提交
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由 Anton Altaparmakov 提交于
better code generation and one less sparse warning in fs/ntfs/aops.c. Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>
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