- 29 1月, 2008 36 次提交
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由 Aneesh Kumar K.V 提交于
ext4_ext_get_blocks returns negative values on error. We should check for <= 0 Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Jan Kara 提交于
Before we start committing a transaction, we call __journal_clean_checkpoint_list() to cleanup transaction's written-back buffers. If this call happens to remove all of them (and there were already some buffers), __journal_remove_checkpoint() will decide to free the transaction because it isn't (yet) a committing transaction and soon we fail some assertion - the transaction really isn't ready to be freed :). We change the check in __journal_remove_checkpoint() to free only a transaction in T_FINISHED state. The locking there is subtle though (as everywhere in JBD ;(). We use j_list_lock to protect the check and a subsequent call to __journal_drop_transaction() and do the same in the end of journal_commit_transaction() which is the only place where a transaction can get to T_FINISHED state. Probably I'm too paranoid here and such locking is not really necessary - checkpoint lists are processed only from log_do_checkpoint() where a transaction must be already committed to be processed or from __journal_clean_checkpoint_list() where kjournald itself calls it and thus transaction cannot change state either. Better be safe if something changes in future... Signed-off-by: NJan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Chris Snook 提交于
Signed-off-by: NChris Snook <csnook@redhat.com> Cc: "Stephen C. Tweedie" <sct@redhat.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Aneesh Kumar K.V 提交于
When a new block bitmap is read from disk in read_block_bitmap() there are a few bits that should ALWAYS be set. In particular, the blocks given corresponding to block bitmap, inode bitmap and inode tables. Validate the block bitmap against these blocks. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Add buffer head related helper function bh_uptodate_or_lock and bh_submit_read which can be used by file system Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
ext4 file system was by default ignoring errors and continuing. This is not a good default as continuing on error could lead to file system corruption. Change the default to mark the file system readonly. Debian and ubuntu already does this as the default in their fstab. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Eric Sandeen 提交于
When mounting an ext4 filesystem with corrupted s_first_data_block, things can go very wrong and oops. Because blocks_count in ext4_fill_super is a u64, and we must use do_div, the calculation of db_count is done differently than on ext4. If first_data_block is corrupted such that it is larger than ext4_blocks_count, for example, then the intermediate blocks_count value may go negative, but sign-extend to a very large value: blocks_count = (ext4_blocks_count(es) - le32_to_cpu(es->s_first_data_block) + EXT4_BLOCKS_PER_GROUP(sb) - 1); This is then assigned to s_groups_count which is an unsigned long: sbi->s_groups_count = blocks_count; This may result in a value of 0xFFFFFFFF which is then used to compute db_count: db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / EXT4_DESC_PER_BLOCK(sb); and in this case db_count will wind up as 0 because the addition overflows 32 bits. This in turn causes the kmalloc for group_desc to be of 0 size: sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), GFP_KERNEL); and eventually in ext4_check_descriptors, dereferencing sbi->s_group_desc[desc_block] will result in a NULL pointer dereference. The simplest test seems to be to sanity check s_first_data_block, EXT4_BLOCKS_PER_GROUP, and ext4_blocks_count values to be sure their combination won't result in a bad intermediate value for blocks_count. We could just check for db_count == 0, but catching it at the root cause seems like it provides more info. Signed-off-by: NEric Sandeen <sandeen@redhat.com> Reviewed-by: NMingming Cao <cmm@us.ibm.com>
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由 Adrian Bunk 提交于
Based on a report by Robert P. J. Day. Signed-off-by: NAdrian Bunk <bunk@kernel.org>
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由 Aneesh Kumar K.V 提交于
This fix some instances where we were continuing after calling ext4_error. ext4_error call panic only if errors=panic mount option is set. So we need to make sure we return correctly after ext4_error call Reported by: Adrian Bunk <bunk@kernel.org> Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Coly Li 提交于
This patch extends bg_itable_unused of ext4 group descriptor from 16bit into 32bit. In order to add bg_itable_unused_hi into struct ext4_group_desc, some extra fields which are already introduced into e2fsprogs are also added in for consistency. Signed-off-by: NColy Li <coyli@suse.de> Cc: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Aneesh Kumar K.V 提交于
The max file size for ext3 file system is now calculated with hardcoded 4K block size. The patch fixes it to be calculated with the right block size. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
The max file size for ext2 file system is now calculated with hardcoded 4K block size. The patch fixes it to be calculated with the right block size. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Eric Sandeen 提交于
Calculate & store the max offset for bitmapped files, and catch too-large seeks, truncates, and writes in ext4, shortening or rejecting as appropriate. Signed-off-by: NEric Sandeen <sandeen@redhat.com>
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由 Eric Sandeen 提交于
Export iov_shorten() from kernel so that ext4 can truncate too-large writes to bitmapped files. Signed-off-by: NEric Sandeen <sandeen@redhat.com>
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由 Eric Sandeen 提交于
use 2 different maxbytes functions for bitmapped & extent-based files. Signed-off-by: NEric Sandeen <sandeen@redhat.com>
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由 Aneesh Kumar K.V 提交于
This patch converts ext4_inode i_blocks to represent total blocks occupied by the inode in file system block size. Earlier the variable used to represent this in 512 byte block size. This actually limited the total size of the file. The feature is enabled transparently when we write an inode whose i_blocks cannot be represnted as 512 byte units in a 48 bit variable. inode flag EXT4_HUGE_FILE_FL Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Use the __le16 l_i_reserved1 field of the linux2 struct of ext4_inode to represet the higher 16 bits for i_blocks. With this change max_file size becomes (2**48 -1 )* 512 bytes. We add a RO_COMPAT feature to the super block to indicate that inode have i_blocks represented as a split 48 bits. Super block with this feature set cannot be mounted read write on a kernel with CONFIG_LSF disabled. Super block flag EXT4_FEATURE_RO_COMPAT_HUGE_FILE Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Rename ext4_inode.i_dir_acl to i_size_high drop ext4_inode_info.i_dir_acl as it is not used Rename ext4_inode.i_size to ext4_inode.i_size_lo Add helper function for accessing the ext4_inode combined i_size. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Rename i_file_acl to i_file_acl_lo. This helps in finding bugs where we use i_file_acl instead of the combined i_file_acl_lo and i_file_acl_high Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Fix sparse warnings related to static functions and local variables. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Aneesh Kumar K.V 提交于
Introduce ext4_update_*_feature and use them instead of opencoding. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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由 Avantika Mathur 提交于
This patch fixes various places where the group number is set to a negative value. Signed-off-by: NAvantika Mathur <mathur@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Avantika Mathur 提交于
In many places variables for block group are of type int, which limits the maximum number of block groups to 2^31. Each block group can have up to 2^15 blocks, with a 4K block size, and the max filesystem size is limited to 2^31 * (2^15 * 2^12) = 2^58 -- or 256 PB This patch introduces a new type ext4_group_t, of type unsigned long, to represent block group numbers in ext4. All occurrences of block group variables are converted to type ext4_group_t. Signed-off-by: NAvantika Mathur <mathur@us.ibm.com>
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由 Eric Sandeen 提交于
There are many casts in extents.c which are not needed, as the variables are already the type of the cast, or are being promoted for no particular reason in printk's. Signed-off-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Aneesh Kumar K.V 提交于
This patch adds a new data type ext4_lblk_t to represent the logical file blocks. This is the preparatory patch to support large files in ext4 The follow up patch with convert the ext4_inode i_blocks to represent the number of blocks in file system block size. This changes makes it possible to have a block number 2**32 -1 which will result in overflow if the block number is represented by signed long. This patch convert all the block number to type ext4_lblk_t which is typedef to __u32 Also remove dead code ext4_ext_walk_space Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: NEric Sandeen <sandeen@redhat.com>
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由 Jan Kara 提交于
With 64KB blocksize, a directory entry can have size 64KB which does not fit into 16 bits we have for entry lenght. So we store 0xffff instead and convert value when read from / written to disk. The patch also converts some places to use ext4_next_entry() when we are changing them anyway. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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由 Takashi Sato 提交于
This patch set supports large block size(>4k, <=64k) in ext4, just enlarging the block size limit. But it is NOT possible to have 64kB blocksize on ext4 without some changes to the directory handling code. The reason is that an empty 64kB directory block would have a rec_len == (__u16)2^16 == 0, and this would cause an error to be hit in the filesystem. The proposed solution is treat 64k rec_len with a an impossible value like rec_len = 0xffff to handle this. The Patch-set consists of the following 2 patches. [1/2] ext4: enlarge blocksize - Allow blocksize up to pagesize [2/2] ext4: fix rec_len overflow - prevent rec_len from overflow with 64KB blocksize Now on 64k page ppc64 box runs with this patch set we could create a 64k block size ext4dev, and able to handle empty directory block. Signed-off-by: NTakashi Sato <sho@tnes.nec.co.jp> Signed-off-by: NMingming Cao <cmm@us.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] constify function pointer tables [WATCHDOG] TXx9 watchdog driver [WATCHDOG] misc_register patch [WATCHDOG] wdt: fix locking
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (197 commits) sh: add spi header and r2d platform data V3 sh: update r7780rp interrupt code sh: remove consistent alloc stuff from the machine vector sh: use declared coherent memory for dreamcast pci ethernet adapter sh: declared coherent memory support V2 sh: Add support for SDK7780 board. sh: constify function pointer tables sh: Kill off -traditional for linker script. cdrom: Add support for Sega Dreamcast GD-ROM. sh: Kill off hs7751rvoip reference from arch/sh/Kconfig. sh: Drop r7780rp_defconfig, use r7780mp_defconfig as kbuild default. sh: Kill off dead HS771RVoIP board support. sh: r7785rp: Fix up DECLARE_INTC_DESC() arg mismatch. sh: r7785rp: Hook up the rest of the HL7785 FPGA IRQ vectors. sh: r2d - enable sm501 usb host function sh: remove voyagergx sh: r2d - add lcd planel timings to sm501 platform data sh: Add OHCI and UDC platform devices for SH7720. sh: intc - remove default interrupt priority tables sh: Correct pte size mismatch for X2 TLB. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (24 commits) HID: ADS/Tech Radio si470x needs blacklist entry HID: Logitech Extreme 3D needs NOGET quirk HID: Refactor MS Presenter 8K key mapping HID: MS Presenter mapping for PID 0x0701 HID: Support Samsung IR remote HID: fix compilation of hidbp drivers without usbhid HID: Blacklist the Gretag-Macbeth Huey display colorimeter HID: the `bit' in hidinput_mapping_quirks() is an out parameter HID: remove redundant WARN_ON()s in order not to scare users HID: force hiddev creation for SONY PS3 controller HID: Use hid blacklist in usbmouse/usbkbd HID: proper handling of MS 4k and 6k devices HID: remove unused variable in quirk event handler HID: hid-input quirk for BTC 8193 HID: separate hid-input event quirks from generic code HID: refactor mapping to input subsystem for quirky devices HID: Microsoft Wireless Optical Desktop 3.0 quirk HID: Add support for Logitech Elite keyboards HID: add full support for Genius KB-29E HID: fix a potential bug in pointer casting ...
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-2.6.25' of git://git.kernel.dk/linux-2.6-block: block: implement drain buffers __bio_clone: don't calculate hw/phys segment counts block: allow queue dma_alignment of zero blktrace: Add blktrace ioctls to SCSI generic devices
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'blk-end-request' of git://git.kernel.dk/linux-2.6-block: (30 commits) blk_end_request: changing xsysace (take 4) blk_end_request: changing ub (take 4) blk_end_request: cleanup of request completion (take 4) blk_end_request: cleanup 'uptodate' related code (take 4) blk_end_request: remove/unexport end_that_request_* (take 4) blk_end_request: changing scsi (take 4) blk_end_request: add bidi completion interface (take 4) blk_end_request: changing ide-cd (take 4) blk_end_request: add callback feature (take 4) blk_end_request: changing ide normal caller (take 4) blk_end_request: changing cpqarray (take 4) blk_end_request: changing cciss (take 4) blk_end_request: changing ide-scsi (take 4) blk_end_request: changing s390 (take 4) blk_end_request: changing mmc (take 4) blk_end_request: changing i2o_block (take 4) blk_end_request: changing viocd (take 4) blk_end_request: changing xen-blkfront (take 4) blk_end_request: changing viodasd (take 4) blk_end_request: changing sx8 (take 4) ...
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'sg' of git://git.kernel.dk/linux-2.6-block: SG: work with the SCSI fixed maximum allocations. SG: Convert SCSI to use scatterlist helpers for sg chaining SG: Move functions to lib/scatterlist.c and add sg chaining allocator helpers
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'cfq-ioc-share' of git://git.kernel.dk/linux-2.6-block: cfq-iosched: kill some big inlines cfq-iosched: relax IOPRIO_CLASS_IDLE restrictions kernel: add CLONE_IO to specifically request sharing of IO contexts io_context sharing - anticipatory changes block: cfq: make the io contect sharing lockless io_context sharing - cfq changes io context sharing: preliminary support ioprio: move io priority from task_struct to io_context
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由 Linus Torvalds 提交于
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (176 commits) [ARM] 4795/1: S3C244X: Add armclk and setparent call [ARM] 4794/1: S3C24XX: Comonise S3C2440 and S3C2442 clock code [ARM] 4793/1: S3C24XX: Add IRQ->GPIO pin mapping function [ARM] 4792/1: S3C24XX: Remove warnings from debug-macro.S [ARM] 4791/1: S3C2412: Make fclk a parent of msysclk [ARM] 4790/1: S3C2412: Fix parent selection for msysclk. [ARM] 4789/1: S3C2412: Add missing CLKDIVN register values [ARM] 4788/1: S3C24XX: Fix paramet to s3c2410_dma_ctrl if S3C2410_DMAF_AUTOSTART used. [ARM] 4787/1: S3C24XX: s3c2410_dma_request() should return the allocated channel number [ARM] 4786/1: S3C2412: Add SPI FIFO controll constants [ARM] 4785/1: S3C24XX: Add _SHIFT definitions for S3C2410_BANKCON registers [ARM] 4784/1: S3C24XX: Fix GPIO restore glitches [ARM] 4783/1: S3C24XX: Add s3c2410_gpio_getpull() [ARM] 4782/1: S3C24XX: Define FIQ_START for any FIQ users [ARM] 4781/1: S3C24XX: DMA suspend and resume support [ARM] 4780/1: S3C2412: Allow for seperate DMA channels for TX and RX [ARM] 4779/1: S3C2412: Add s3c2412_gpio_set_sleepcfg() call [ARM] 4778/1: S3C2412: Add armclk and init from DVS state [ARM] 4777/1: S3C24XX: Ensure clk_set_rate() checks the set_rate method for the clk [ARM] 4775/1: s3c2410: fix compilation error if only s3c2442 cpu is selected ...
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由 Linus Nilsson 提交于
The documentation for ata_data_xfer and ata_data_xfer_noirq had the 'rw' parameter named 'write_data'. Signed-off-by: NLinus Nilsson <lajnold@acc.umu.se> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 1月, 2008 4 次提交
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由 Tobias Lorenz 提交于
This patch adds blacklist entries in hid-quirks.c to let the usbhid driver ignore the si470x radio devices. They are now handled by the new radio-si470x driver. Signed-off-by: NTobias Lorenz <tobias.lorenz@gmx.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Jiri Kosina 提交于
Logitech Extreme 3D needs NOGET quirk, otherwise it times out at the time of connect. Reported-by: NMike Sharov <msharov@softhome.net> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Jan Kiszka 提交于
Following the suggestion of Jonas, this patch maps the special keys of the MS Presenter 8000 to targets that should allow for better re-mapping according to individual use cases (i.e. I avoided hard-wiring to standard keys). This time I also included the last missing key event (switching back from presentation mode). The optimal Xmodmap customization for using the Presenter with OpenOffice now looks like this for me: keycode 175 = Escape keycode 179 = F5 keysym XF86Forward = Right keysym XF86Back = Left Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Jiri Kosina 提交于
0x045e/0x0701 also needs the hid-input mapping quirk established by quirk_microsoft_presenter_8k(). Reported-by: NJonas Delrue <jonas_delrue@hotmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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