is_mgtime(9)

💅 is_mgtime — like, is this inode on multigrain timestamps or not?

okay so we're in the Kernel API Manual bestie, and this page is about is_mgtime(9). she's a tiny little function but she's doing her job and we respect her for it 🫶

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✨ NAME ✨

is_mgtime — literally just: is this inode using multigrain timestamps?

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🌸 SYNOPSIS 🌸

bool is_mgtime (const struct inode *inode );

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🎀 ARGUMENTS 🎀

• inode — the inode you want to test for multigrain timestamps. that's the whole assignment bestie, just hand her an inode and she'll tell you what's up 💅

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🦋 DESCRIPTION 🦋

Returns true if the inode uses multigrain timestamps, and false otherwise. that's it. that's the function. no plot twists, no side quests, no cap 🔥

like yes she's simple but that's her main character energy — one question, one answer, no drama ✨

ngl if you were expecting a long description you're gonna be disappointed, this one ate and left no crumbs because there was nothing to eat 😭

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🌈 SEE ALSO 🌈

the whole friend group came to support her, and there are so many of them — go say hi:

• Kernel file ./include/linux/fs.h
• enum positive_aop_returns(9)
• struct address_space(9)
• struct file_ra_state(9)
• struct file(9)
• i_uid_into_vfsuid(9)
• i_uid_needs_update(9)
• i_uid_update(9)
• i_gid_into_vfsgid(9)
• i_gid_needs_update(9)
• i_gid_update(9)
• inode_fsuid_set(9)
• inode_fsgid_set(9)
• fsuidgid_has_mapping(9)
• inode_set_ctime(9)
• file_write_started(9)
• file_write_not_started(9)
• struct renamedata(9)
• iput_if_not_last(9)
• is_idmapped_mnt(9)
• file_start_write(9)
• file_end_write(9)
• kiocb_start_write(9)
• kiocb_end_write(9)
• name_is_dot_dotdot(9)
• name_contains_dotdot(9)
• inode_dio_begin(9)
• inode_dio_end(9)
• generic_ci_validate_strict_name(9)

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and that's the page!! she lives in ./include/linux and this version is dated October 2026 — mwah, stan her, periodt 💖👑