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authorJaegeuk Kim <jaegeuk@kernel.org>2017-01-04 02:19:30 +0100
committerJaegeuk Kim <jaegeuk@kernel.org>2017-01-29 04:46:01 +0100
commitbb95d9ab2a9d4afd03b59a603cccb2c601f68b78 (patch)
treecd56424ddb193869ea266c129b2071ee74f5f5ed /fs/f2fs/file.c
parentf2fs: don't allow encrypted operations without keys (diff)
downloadlinux-bb95d9ab2a9d4afd03b59a603cccb2c601f68b78.tar.xz
linux-bb95d9ab2a9d4afd03b59a603cccb2c601f68b78.zip
f2fs: drop exist_data for inline_data when truncated to 0
A test program gets the SEEK_DATA with two values between a new created file and the exist file on f2fs filesystem. F2FS filesystem, (the first "test1" is a new file) SEEK_DATA size != 0 (offset = 8192) SEEK_DATA size != 0 (offset = 4096) PNFS filesystem, (the first "test1" is a new file) SEEK_DATA size != 0 (offset = 4096) SEEK_DATA size != 0 (offset = 4096) int main(int argc, char **argv) { char *filename = argv[1]; int offset = 1, i = 0, fd = -1; if (argc < 2) { printf("Usage: %s f2fsfilename\n", argv[0]); return -1; } /* if (!access(filename, F_OK) || errno != ENOENT) { printf("Needs a new file for test, %m\n"); return -1; }*/ fd = open(filename, O_RDWR | O_CREAT, 0777); if (fd < 0) { printf("Create test file %s failed, %m\n", filename); return -1; } for (i = 0; i < 20; i++) { offset = 1 << i; ftruncate(fd, 0); lseek(fd, offset, SEEK_SET); write(fd, "test", 5); /* Get the alloc size by seek data equal zero*/ if (lseek(fd, 0, SEEK_DATA)) { printf("SEEK_DATA size != 0 (offset = %d)\n", offset); break; } } close(fd); return 0; } Reported-and-Tested-by: Kinglong Mee <kinglongmee@gmail.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 291d2ca53a4c..6c335180b9d8 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -570,6 +570,8 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
if (f2fs_has_inline_data(inode)) {
if (truncate_inline_inode(ipage, from))
set_page_dirty(ipage);
+ if (from == 0)
+ clear_inode_flag(inode, FI_DATA_EXIST);
f2fs_put_page(ipage, 1);
truncate_page = true;
goto out;