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| author | Sami Kerola | 2015-10-31 18:29:02 +0100 |
|---|---|---|
| committer | Sami Kerola | 2015-11-22 21:56:05 +0100 |
| commit | 8fe1e638fa81d88e1e405f6221c7a592284c9b23 (patch) | |
| tree | 7b95d5f7c2276f0ccdc5e24d97b5343d942b0d08 /include/blkdev.h | |
| parent | include/fileutils: add is_same_inode() check (diff) | |
| download | kernel-qcow2-util-linux-8fe1e638fa81d88e1e405f6221c7a592284c9b23.tar.gz kernel-qcow2-util-linux-8fe1e638fa81d88e1e405f6221c7a592284c9b23.tar.xz kernel-qcow2-util-linux-8fe1e638fa81d88e1e405f6221c7a592284c9b23.zip | |
lib/blkdev: add open_blkdev_or_file() function
Purpose of this function is to open a path that is potentially pointing to a
block device or file without races. The function also proper open(3) flags
are used to check the device is not busy, and finally warning is been
printed if a block device happens to be misaligned.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'include/blkdev.h')
| -rw-r--r-- | include/blkdev.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/blkdev.h b/include/blkdev.h index c994795a2..46fb2cef0 100644 --- a/include/blkdev.h +++ b/include/blkdev.h @@ -97,6 +97,9 @@ struct hd_geometry { /* are we working with block device? */ int is_blkdev(int fd); +/* open block device or file */ +int open_blkdev_or_file(const struct stat *st, const char *name, const int oflag); + /* Determine size in bytes */ off_t blkdev_find_size (int fd); |