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Now that there is a "real" solution for exfat in the vfs tree queued up
to be merged in 5.7-rc1 the "old" exfat code in staging can be removed.
Many thanks to Valdis for doing the work to get this into the tree in
the first place, it was greatly appreciated.
Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Pali Rohár <pali@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
Cc: Sungjong Seo <sj1557.seo@samsung.com>
Cc: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20200310105421.GA2810679@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Align code to match open parenthesis.
Signed-off-by: Payal Kshirsagar <payalskshirsagar1234@gmail.com>
Link: https://lore.kernel.org/r/20200309165138.5313-1-payalskshirsagar1234@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The mode parameter in ffsCreateFile() and create_file() is redundant.
Remove it and definition.
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200228084037.15123-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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buf_cache_t.flag is used only for lock.
Change the variable name from 'flag' to 'locked' and remove unused definitions.
Reviewed-by: Takahiro Mori <Mori.Takahiro@ab.MitsubishiElectric.co.jp>
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200227104043.11503-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Completely remove symlink codes and definitions.
In the previous patch, it was not completely removed.
Reviewed-by: Takahiro Mori <Mori.Takahiro@ab.MitsubishiElectric.co.jp>
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200227061559.4481-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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exfat_buf_sync() is not called anywhere, hence remove it from
exfat_cache.c and exfat.h
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Link: https://lore.kernel.org/r/20200223191623.GA20122@kaaira-HP-Pavilion-Notebook
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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sync_alloc_bitmap() is not called anywhere, hence remove it from
exfat_core.c and exfat.h
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Link: https://lore.kernel.org/r/20200223192347.GA20286@kaaira-HP-Pavilion-Notebook
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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exfat_fat_sync() is not called anywhere, hence remove it from
exfat_cache.c and exfat.h
Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Link: https://lore.kernel.org/r/20200219161738.GA22282@kaaira-HP-Pavilion-Notebook
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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count_entries() function is only used to count sub-dirs.
Clarify the role and rename to count_dir_entries().
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200217072941.34116-2-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove 'dos_name','short_name' and related definitions.
'dos_name' and 'short_name' are definitions before VFAT.
These are never used in exFAT.
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200217072941.34116-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "AccessTimestamp" to
"access_timestamp"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-20-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "ModifyTimestamp" to
"modify_timestamp"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-19-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "CreateTimestamp" to
"create_timestamp"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-18-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "NumSubdirs" to "num_subdirs"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-17-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Attr" to "attr"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-16-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "ShortName" to "short_name"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-15-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Name" to "name"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-14-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "MilliSecond" to "millisecond"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-8-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Second" to "second"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-7-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Minute" to "minute"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-6-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Hour" to "hour"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-5-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Day" to "day"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-4-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Month" to "month"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-3-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "Year" to "year"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-2-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove global declaration of unused struct "dev_info_t".
Structure "dev_info_t" is defined in exfat.h and not referenced in any
other file.
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200130101118.15936-3-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove global declaration of unused struct "part_info_t".
Structure "part_info_t" is defined in exfat.h and not referenced in any
other file.
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200130101118.15936-2-pragat.pandya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove 'vol_type' variable.
The following issues are described in exfat's TODO.
> clean up the remaining vol_type checks, which are of two types:
> some are ?: operators with magic numbers, and the rest are places
> where we're doing stuff with '.' and '..'.
The vol_type variable is always set to 'EXFAT'.
The variable checks are unnessesary, so remove unused code.
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Reviewed-by: Mori Takahiro <Mori.Takahiro@ab.MitsubishiElectric.co.jp>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200130070614.11999-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove 'fs_func struct' and change indirect calls to direct calls.
The following issues are described in exfat's TODO.
> Create helper function for exfat_set_entry_time () and
> exfat_set_entry_type () because it's sort of ugly to be calling the same functionn directly and other code calling through the fs_func struc ponters ...
The fs_func struct was used for switching the helper functions of fat16/fat32/exfat.
Now, it has lost the role of switching, just making the code less readable.
Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Link: https://lore.kernel.org/r/20200123102445.123033-1-Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add STAGING prefix to config names to avoid collsion with fs/exfat config.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Link: https://lore.kernel.org/r/20200103011345.25245-1-namjae.jeon@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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`rename_file' was exported but not properly namespaced causing a
multiple definition error because `rename_file' is already defined in
fs/hostfs/hostfs_user.c:
ld: drivers/staging/exfat/exfat_core.o: in function `rename_file':
drivers/staging/exfat/exfat_core.c:2327: multiple definition of
`rename_file'; fs/hostfs/hostfs_user.o:fs/hostfs/hostfs_user.c:350:
first defined here
make: *** [Makefile:1077: vmlinux] Error 1
This error can be reproduced on ARCH=um by selecting:
CONFIG_EXFAT_FS=y
CONFIG_HOSTFS=y
Add a namespace prefix exfat_* to fix this error.
Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Cc: stable <stable@vger.kernel.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: David Gow <davidgow@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://lore.kernel.org/r/20191204234522.42855-1-brendanhiggins@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename all the FAT_* functions to exfat_fat_*.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-13-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Global functions called 'buf*' are a linkage editor disaster waiting to
happen. Rename our buf_* functions to exfat_buf_*
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-12-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move a few more things so we can make them static and clear exfat.h out.
At this point, pretty much everything that can be static is static.
(Note: FAT_sync(), buf_sync(), and sync_alloc_bitmap() aren't called
anyplace, but aren't static because (a) that will toss an error and
(b) they probably *should* be getting called someplace
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-11-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some more functions that can be moved and made static
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-10-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Relocating these functions to before first use lets us make them static
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-9-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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These functions are only used in the local file, make them static
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-8-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename all the bdev_* to exfat_bdev_*
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-7-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Everything referenced in the struct fs_func exfat_fs_func is located
in that same .c file. Make them static and remove from exfat.h
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-6-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The code simplification from the previous patch rendered a few more
routines unreferenced, so heave them over the side as well.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-5-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove no longer referenced FAT/VFAT routines.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-3-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the top-level mount functionality, to make this driver handle
only exfat file systems.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112211238.156490-2-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_SUCCESS to 0.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-8-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are 6 FFS_* error values not used at all. Remove them.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-7-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_ERROR to -EINVAL
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-6-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Covert FFS_INVALIDFID to -EINVAL
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-5-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_EOF to return 0 for a zero-length read() as per 'man 2 read'.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-4-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_MEDIAERR to (mostly) -ENOENT and -EIO. Some additional code surgery
needed to propogate correct error codes upwards.
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-3-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_FORMATERR to -EFSCORRUPTED
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191112021000.42091-2-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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At a slight footprint cost (24 vs 32 bytes), mutexes are more optimal
than semaphores; it's also a nicer interface for mutual exclusion,
which is why they are encouraged over binary semaphores, when possible.
For both v_sem and z_sem, their semantics imply traditional lock
ownership; that is, the lock owner is the same for both lock/unlock
operations. Therefore it is safe to convert.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191030144916.10802-1-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert FFS_MEMORYERR to -ENOMEM
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191024155327.1095907-9-Valdis.Kletnieks@vt.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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